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| Product | Description | |
|---|---|---|
| leucine dehydrogenase | Also acts on isoleucine, valine, norvaline and norleucine. Group: Enzymes. Synonyms: L-leucine dehydrogenase; L-leucine:NAD+ oxidoreductase, deaminating; LeuDH. Enzyme Commission Number: EC 1.4.1.9. CAS No. 9082-71-7. Leucine dehydrogenase. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-1463; leucine dehydrogenase; EC 1.4.1.9; 9082-71-7; L-leucine dehydrogenase; L-leucine:NAD+ oxidoreductase, deaminating; LeuDH. Cat No: EXWM-1463. |  |
| Leucine dehydrogenase from Microorganism | In enzymology, a leucine dehydrogenase (EC 1.4.1.9) is an enzyme that catalyzes the chemical reaction: L-leucine + H2O + NAD+ ? 4-methyl-2-oxopentanoate + NH3 + NADH + H+. The 3 substrates of this enzyme are L-leucine, H2O, and NAD+, whereas its 4 products are 4-methyl-2-oxopentanoate, NH3, NADH, and H+. This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-NH2 group of donors with NAD+ or NADP+ as acceptor. This enzyme participates in valine, leucine and isoleucine degradation and valine, leucine and isoleucine biosynthesis. Group: Enzymes. Synonyms: EC 1.4.1.9; Leucine dehydrogenase; L-leucine: NAD+ oxidoreductase (deaminating); L-leucine dehydrogenase; L-leucine: NAD+ oxidoreductase (deaminating); LeuDH. Enzyme Commission Number: EC 1.4.1.9. CAS No. 9082-71-7. Mole weight: 43 kDa (SDS-PAGE). Activity: >500U/mg protein. Storage: Store at -20°C. Form: White powder, lyophilized. Source: Microorganism. EC 1.4.1.9; Leucine dehydrogenase; L-leucine: NAD+ oxidoreductase (deaminating); L-leucine dehydrogenase; L-leucine: NAD+ oxidoreductase (deaminating); LeuDH; LEDH. Cat No: NATE-1715. | |
| Leucine EP Impurity 7 | Leucine EP Impurity 7. Uses: For analytical and research use. CAS No. 2165538-35-0. Molecular formula: C10H21NO3. Mole weight: 203.28. Catalog: APB2165538350. |  |
| Leucine EP Impurity 8 | Leucine EP Impurity 8. Uses: For analytical and research use. CAS No. 2437569-52-1. Molecular formula: C10H21NO3. Mole weight: 203.28. Catalog: APB2437569521. | |
| Leucine EP Impurity 9 | Leucine EP Impurity 9. Uses: For analytical and research use. CAS No. 2448678-83-7. Molecular formula: C10H21NO3. Mole weight: 203.28. Catalog: APB2448678837. | |
| Leucine EP Impurity A | Leucine EP Impurity A. Uses: For analytical and research use. CAS No. 7004-9-3. Molecular formula: C6H13NO2. Mole weight: 131.18. Catalog: APB7004093. | |
| Leucine EP Impurity B | Leucine EP Impurity B. Uses: For analytical and research use. CAS No. 63-68-3. Molecular formula: C5H11NO2S. Mole weight: 149.21. Catalog: APB63683. | |
| Leucine EP Impurity D | Leucine EP Impurity D. Uses: For analytical and research use. CAS No. 3558-32-5. Molecular formula: C7H15NO2. Mole weight: 145.2. Catalog: APB3558325. | |
| Leucine (L-Leucine) | Leucine (L-Leucine). Uses: For analytical and research use. Alternative Names: Leucine, (S)-2-amino-4-methylpentanoic acid, Leucine, L- (8CI), (2S)-2-Amino-4-methylpentanoic acid, (S)-(+)-Leucine, (S)-2-Amino-4-methylpentanoic acid, (S)-2-Amino-4-methylvaleric acid, (S)-Leucine, 100: PN: US20070066537 PAGE: 17 claimed protein, 124: PN: EP2071334 SEQID: 136 claimed protein, 124: PN: WO2009077864 SEQID: 136 claimed protein, 164: PN: WO2010045512 SEQID: 173 unclaimed protein, 325: PN: WO2010059829 SEQID: 353 unclaimed protein, 45: PN: WO2008005407 PAGE: 5 claimed protein, 8: PN: US20090069547 PAGE: 10 claimed protein, L-(+)-Leucine, L-2-Amino-4-methylpentanoic acid, L-Norvaline, 4-methyl-, L-alpha-Aminoisocaproic acid, Leu, NSC 46709, Pentanoic acid, 2-amino-4-methyl-, (S)-,Phenylalanine Imp. A (EP). CAS No. 61-90-5. Molecular formula: C6H13NO2. Mole weight: 131.17. IUPAC Name: (2S)-2-amino-4-methylpentanoic acid. Catalog: APS61905B. | |
| leucine N-acetyltransferase | Propanoyl-CoA can act as a donor, but more slowly. L-Arginine, L-valine, L-phenylalanine and peptides containing L-leucine can act as acceptors. Group: Enzymes. Synonyms: leucine acetyltransferase. Enzyme Commission Number: EC 2.3.1.66. CAS No. 75496-56-9. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-2246; leucine N-acetyltransferase; EC 2.3.1.66; 75496-56-9; leucine acetyltransferase. Cat No: EXWM-2246. | |
| leucine transaminase | A pyridoxal-phosphate protein. This enzyme differs from EC 2.6.1.42, branched-chain-amino-acid transaminase, in that it does not act on L-valine or L-isoleucine, although it does act on L-methionine. The mitochondrial form from rat liver differs in physical characteristics from the cytoplasmic form. Group: Enzymes. Synonyms: L-leucine aminotransferase; leucine 2-oxoglutarate transaminase; leucine aminotransferase; leucine-α-ketoglutarate transaminase. Enzyme Commission Number: EC 2.6.1.6. CAS No. 9030-37-9. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-2901; leucine transaminase; EC 2.6.1.6; 9030-37-9; L-leucine aminotransferase; leucine 2-oxoglutarate transaminase; leucine aminotransferase; leucine-α-ketoglutarate transaminase. Cat No: EXWM-2901. | |
| leucine-tRNA ligase | This enzyme belongs to the family of ligases, to be specific those forming carbon-oxygen bonds in aminoacyl-tRNA and related compounds. This enzyme participates in valine, leucine and isoleucine biosynthesis and aminoacyl-trna biosynthesis. Group: Enzymes. Synonyms: leucyl-tRNA synthetase; leucyl-transfer ribonucleate synthetase; leucyl-transfer RNA synthetase; leucyl-transfer ribonucleic acid synthetase; leucine-tRNA synthetase; leucine translase. Enzyme Commission Number: EC 6.1.1.4. CAS No. 9031-15-6. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-5660; leucine-tRNA ligase; EC 6.1.1.4; 9031-15-6; leucyl-tRNA synthetase; leucyl-transfer ribonucleate synthetase; leucyl-transfer RNA synthetase; leucyl-transfer ribonucleic acid synthetase; leucine-tRNA synthetase; leucine translase. Cat No: EXWM-5660. | |
| Leucinol | Leucinol. CAS No: 7533-40-6 |  Sarchem Laboratories New Jersey NJ |
| Leucinostatin A | It is produced by the strain of Paecilomyces lilacinus A-267. It's a peptide antibiotic. It has a strong anti-pathogenic and non-pathogenic yeast and fungi activity, but also has a medium anti-bacterial effect. It was previously reported that Leucinostatin A and B mixtures inhibited HeLa cells. 0.05 μg/mL of Leucinostatin A for a week (0.25 mg/kg?d) has inhibitory effect on the airy ascites carcinoma entity type, and for ascites type is invalid. Alternative Names: Antibiotic 1907-VIII; Antibiotic CC 1014; Paecilotoxin A; Antibiotic P-168; beta-Alaninamide, cis-4-methyl-1-(4-methyl-1-oxo-2-hexenyl)-L-prolyl-(4S,6S)-6-hydroxy-4-methyl-8-oxo-L-2-aminodecanoyl-threo-3-hydroxy-L-leucyl-2-methylalanyl-L-leucyl-L-leucyl-2-methylalanyl-2-methylalanyl-N-(2-(dimethylamino)-1-methylethyl)-, (1(S-(E)),9(S))-; Tryanocidin. Grades: >95% by HPLC. CAS No. 76600-38-9. Molecular formula: C62H111N11O13. Mole weight: 1218.61. |  |
| Leucinostatin B | It is produced by the strain of Paecilomyces lilacinus A-267. It's a peptide antibiotic. It has a strong anti-pathogenic and non-pathogenic yeast and fungi activity, but also has a medium anti-bacterial effect. It was previously reported that Leucinostatin A and B mixtures inhibited HeLa cells. 0.05 μg/mL of Leucinostatin B for a week (0.25 mg/kg?d) has inhibitory effect on the airy ascites carcinoma entity type, and for ascites type is invalid. Alternative Names: Paecilotoxin B; Leucinostatin A, 9-[N-[1-methyl-2-(methylamino)ethyl]-b-alaninamide]-, [9(S)]-; Antibiotic 1907-II; b-Alaninamide, cis-4-methyl-1-(4-methyl-1-oxo-2-hexenyl)-L-prolyl-(4S,6S)-6-hydroxy-4-methyl-8-oxo-L-2-aminodecanoyl-threo-3-hydroxy-L-leucyl-2-methylalanyl-L-leucyl-L-leucyl-2-methylalanyl-2-methylalanyl-N-[1-methyl-2-(methylamino)ethyl]-, [1[S-(E)],9(S)]-. Grades: >95%. CAS No. 76663-52-0. Molecular formula: C61H109N11O13. Mole weight: 1204.58. | |
| Leucinostatin D | It is produced by the strain of Paecilomyces marquandii. It's a peptide antibiotic. It has anti-gram-positive bacterial and fungal effects. It has in vitro cytotoxic activity against HeLa 850, KB cells and sensitive leukemia cells P388 with ID50 of 1.00 ng/mL. Alternative Names: Paecilotoxin D; (4R)-N-[1-[[2-hydroxy-3-methyl-1-[2-[[3-methyl-1-[[3-methyl-1-[2-[2-[2-(1-methylaminopropan-2-ylcarbamoyl)ethylcarbamoyl]propan-2-ylcarbamoyl]propan-2-ylcarbamoyl]butyl]carbamoyl]butyl]carbamoyl]propan-2-ylcarbamoyl]butyl]carbamoyl]-3-methyl-butyl]-4-methyl-1-[(E,4S)-4-methylhex-2-enoyl]pyrrolidine-2-carboxamide. CAS No. 100334-47-2. Molecular formula: C56H101N11O11. Mole weight: 1104.47. | |
| Leucinostatin H | It is produced by the strain of Paecilomyces marquandii. It's a peptide antibiotic. It has anti-gram-positive bacterial and fungal effects. Alternative Names: Paecilotoxin H; N-(1-(aminooxy)-26-(1-hydroxy-2-methylpropyl)-17,20-diisobutyl-4,11,11,14,14,23,23,31-octamethyl-6,10,13,16,19,22,25,28-octaoxo-5,9,12,15,18,21,24,27-octaazadotriacontan-29-yl)-4-methyl-1-((R,E)-4-methylhex-2-enoyl)pyrrolidine-2-carboxamide; Leucinostatin A, 2-L-leucine, N9-oxide. CAS No. 109539-58-4. Molecular formula: C57H103N11O12. Mole weight: 1134.49. | |
| Leucinostatin K | It is produced by the strain of Paecilomyces marquandii. It's a peptide antibiotic. It has anti-gram-positive bacterial and fungal effects. Alternative Names: Leucinostatin A, N9-oxide; b-Alaninamide, cis-4-methyl-1-(4-methyl-1-oxo-2-hexenyl)-L-prolyl-(4S,6S)-6-hydroxy-4-methyl-8-oxo-L-2-aminodecanoyl-threo-3-hydroxy-L-leucyl-2-methylalanyl-L-leucyl-L-leucyl-2-methylalanyl-2-methylalanyl-N-[2-(dimethylamino)-1-methylethyl]-, N9-oxide, [1[S-(E)],9(S)]-; N-(1-(aminooxy)-33-hydroxy-26-(1-hydroxy-2-methylpropyl)-17,20-diisobutyl-4,11,11,14,14,23,23,31-octamethyl-6,10,13,16,19,22,25,28,35-nonaoxo-5,9,12,15,18,21,24,27-octaazaheptatriacontan-29-yl)-4-methyl-1-((R,E)-4-methylhex-2-enoyl)pyrrolidine-2-carboxamide. CAS No. 109539-57-3. Molecular formula: C62H111N11O14. Mole weight: 1234.61. | |
| leucoanthocyanidin reductase | The enzyme catalyses the synthesis of catechin, catechin-4β-ol (leucocyanidin) and the related flavan-3-ols afzelechin and gallocatechin, which are initiating monomers in the synthesis of plant polymeric proanthocyanidins or condensed tannins. While 2,3-trans-3,4-cis-leucocyanidin is the preferred flavan-3,4-diol substrate, 2,3-trans-3,4-cis-leucodelphinidin and 2,3-trans-3,4-cis-leucopelargonidin can also act as substrates, but more slowly. NADH can replace NADPH but is oxidized more slowly. Group: Enzymes. Synonyms: leucocyanidin reductase. Enzyme Commission Number: EC 1.17.1.3. CAS No. 776323-46-7. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-1081; leucoanthocyanidin reductase; EC 1.17.1.3; 776323-46-7; leucocyanidin reductase. Cat No: EXWM-1081. | |
| Leuco Crystal Violet | 25g Pack Size. Group: Stains & Indicators. Formula: C25H31N3. CAS No. 603-48-5. Prepack ID 16169867-25g. Molecular Weight 373.53. See USA prepack pricing. |  |
| Leuco Crystal Violet | 5g Pack Size. Group: Stains & Indicators. Formula: C25H31N3. CAS No. 603-48-5. Prepack ID 16169867-5g. Molecular Weight 373.53. See USA prepack pricing. | |
| Leucocrystal Violet (For Biological Stains and Dyes) | Leucocrystal Violet (For Biological Stains and Dyes). Uses: For analytical and research use. Alternative Names: Leucomethyl green; Crystal Violet leucobase; Tris(4-dimethylaminophenyl)methane. CAS No. 603-48-5. Molecular formula: C25H31N3. Mole weight: 373.5. IUPAC Name: 4-[bis[4-(dimethylamino)phenyl]methyl]-N,N-dimethylaniline. Catalog: APB603485. | |
| Leucocyanidin | Leucocyanidin is an active anti-ulcerogenic ingredient was extracted from Litchi Chinensis. Leucocyanidin demonstrates a significant protective effect against Aspirin-induced erosions in rat models[1]. Uses: Scientific research. Category: Natural products. CAS No. 480-17-1. Pack Sizes: 10 mM * 1 mL in DMSO; 5 mg; 10 mg; 50 mg; 100 mg. Product ID: HY-119580. |  |
| leucocyanidin oxygenase | The enzyme requires Fe(II) and ascorbate. It is involved in the pathway by which many flowering plants make anthocyanin (glycosylated anthocyandin) flower pigments. The intermediates are transformed into cis- and trans-dihydroquercetin, which the enzyme can also oxidize to quercetin. Acidification of the products gives anthocyanidin, which, however, may not be a natural precursor of the anthocyanins. Group: Enzymes. Synonyms: anthocyanidin synthase. Enzyme Commission Number: EC 1.14.11.19. CAS No. 180984-01-4. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-0635; leucocyanidin oxygenase; EC 1.14.11.19; 180984-01-4; anthocyanidin synthase. Cat No: EXWM-0635. | |
| Leuco Gentian Violet-d6 (Major) | Leuco Gentian Violet-d6 (Major), is a labelled metabolite of Gentian Violet in seafood products. Group: Biochemicals. Alternative Names: 4,4',4''-Methylidynetris[N,N-dimethylbenzenamine-d6; 4,4',4''-Methylidynetris[N,N-dimethylaniline-d6; 4, 4', 4''- (Hexamethyltriamino) triphenylmethane-d6; Leuco Basic Violet 3-d6; Leucocrystal Violet-d6; Leucomethyl Green-d6; NSC 7338-d6; Tris[4- (dimethylamino) phenyl]methane-d6. Grades: Highly Purified. CAS No. 1173023-92-1. Pack Sizes: 5mg. Molecular Formula: C??H??D?N?, Molecular Weight: 379.57. US Biological Life Sciences. |  Worldwide |
| Leucokinin VIII | Leucokinin VIII is a diuretic octopeptide isolated from cockroach head extract. Alternative Names: Leucokinin 8; H-Gly-Ala-Ser-Phe-Tyr-Ser-Trp-Gly-NH2; glycyl-L-alanyl-L-seryl-L-phenylalanyl-L-tyrosyl-L-seryl-L-tryptophyl-glycinamide; (S)-N-((5S,8S,11S,14S)-5-((1H-indol-3-yl)methyl)-1-amino-11-(4-hydroxybenzyl)-8-(hydroxymethyl)-1,4,7,10,13-pentaoxo-15-phenyl-3,6,9,12-tetraazapentadecan-14-yl)-2-((S)-2-(2-aminoacetamido)propanamido)-3-hydroxypropanamide. Grades: ≥95%. CAS No. 2703746-05-6. Molecular formula: C42H52N10O11. Mole weight: 872.92. | |
| Leucokinin VIII acetate | Leucokinin VIII acetate is a diuretic octapeptide isolated from cockroach head extract. Alternative Names: Leucokinin 8; H-Gly-Ala-Ser-Phe-Tyr-Ser-Trp-Gly-NH2.CH3CO2H; glycyl-L-alanyl-L-seryl-L-phenylalanyl-L-tyrosyl-L-seryl-L-tryptophyl-glycinamide acetic acid. Grades: ≥95%. CAS No. 2703746-06-7. Molecular formula: C44H56N10O13. Mole weight: 932.99. | |
| leucolysin | From the venom of the western cottonmouth moccasin snake (Agkistrodon piscivorus leucostoma). Group: Enzymes. Synonyms: Leucostoma neutral proteinase; Leucostoma peptidase A. Enzyme Commission Number: EC 3.4.24.6. CAS No. 72561-03-6. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-4342; leucolysin; EC 3.4.24.6; 72561-03-6; Leucostoma neutral proteinase; Leucostoma peptidase A. Cat No: EXWM-4342. | |
| Leucomalachite Green | 5g Pack Size. Group: Stains & Indicators. Formula: C23H26N2. CAS No. 129-73-7. Prepack ID 90027147-5g. Molecular Weight 330.47. See USA prepack pricing. | |
| Leucomalachite green 100 μg/mL in acetonitrile | Leucomalachite green 100 μg/mL in acetonitrile. Uses: For analytical and research use. CAS No. 129-73-7. Molecular formula: C23H26N2. Mole weight: 330.47. Purity: 98%. Catalog: APB129737. | |
| Leucomalachite Green (CAS 129-73-7) | Leucomalachite Green (CAS 129-73-7). CAS No. 129-73-7. Cenik is your partner of choice for specialised chemicals. We don't just provide products - we supply solutions to your technical and regulatory specifications. |  |
| Leucomalachite Green-d5 | Leucomalachite Green-d5. Uses: For analytical and research use. CAS No. 947601-82-3. Mole weight: 335.50. Catalog: AP947601823. | |
| Leucomalachite Green-d6 | Leucomalachite Green-d6. Uses: For analytical and research use. CAS No. 1173021-13-0. Mole weight: 336.50. Catalog: AP1173021130. | |
| Leucomentin-5 | It is produced by the strain of Paxillus panuoides. It is a free radical scavenger. It has strong inhibitory effect of lipid peroxidation with IC50 of 0.11 μg/mL. The IC50 of reference Leucomentin-2 is 0.06 μg/mL. Molecular formula: C38H34O13. Mole weight: 698.67. | |
| Leucomentin-6 | It is produced by the strain of Paxillus panuoides. It is a free radical scavenger. It has strong inhibitory effect of lipid peroxidation with IC50 of 0.06 μg/mL. The IC50 of reference Leucomentin-4 is 0.11 μg/mL. Molecular formula: C42H38O13. Mole weight: 750.74. | |
| Leucomethylene blue mesylate | Leucomethylene blue (TRx0237) mesylate, an orally active second-generation tau protein aggregation inhibitor (Ki of 0.12 μM), could be used for the study of Alzheimer's Disease. Leucomethylene blue mesylate is a common reduced form of Methylene Blue, Methylene Blue is a member of the thiazine class of dyes[1][2][3]. Uses: Scientific research. Category: Signaling pathways. Alternative Names: TRx0237 mesylate; Methylene blue leuco base mesylate. CAS No. 1236208-20-0. Pack Sizes: 5 mg; 10 mg; 25 mg; 50 mg; 100 mg. Product ID: HY-19948. | |
| Leucomycin | Leucomycin (Kitasamycin) is an orally active macrolide antibiotic produced by Streptomyces kitasatoensis. Leucomycin has broad-spectrum antibacterial activities against gram-positive and gram-negative bacteria, mycoplasma, leptospira, spirochaetes, rickettsiae and some larger viruses[1][2][3][4][5][6][7]. Uses: Scientific research. Category: Signaling pathways. Alternative Names: Kitasamycin. CAS No. 1392-21-8. Pack Sizes: 50 mg; 100 mg; 200 mg; 500 mg; 1 g. Product ID: HY-N7112. | |
| Leucomycin A1 | It is produced by the strain of Str. kitasatoensis. It's a macrolide antibiotic. It has strong anti-gram-positive bacterial effect, and also has an effect on spirochetes, rickettsium and Chlamydia. After the C3 position on the lactone ring in the structure is acetylated, the activity in vitro is reduced, but the activity in vivo is enhanced, and the toxicity is also reduced. The antibacterial activity of Leucomycin group A is stronger than group B. It has been used in clinical and the indications are the same as erythromycin. Alternative Names: 3-Deacetyljosamycin; Kitasamycin A1; Leucomycin V 4''-(3-methylbutanoate); LM-A1; Turimycin H-5; LeucoMycin V 4-isovalerate; 9-Dihydroniddamycin; 3-O-Deacetyljosamycin. Grades: >99% by HPLC. CAS No. 16846-34-7. Molecular formula: C40H67NO14. Mole weight: 785.96. | |
| Leucomycin A13 | It is a macrolide antibiotic produced by the strain of Str. kitasatoensis. It has strong anti-gram-positive bacterial effect, and also has an effect on spirochetes, rickettsium and Chlamydia. Alternative Names: Kitasamycin A13; 4B-hexanoate leucomycin V; Leucomycin V 4''-hexanoate. Grades: >99% by HPLC. CAS No. 78897-52-6. Molecular formula: C41H69NO14. Mole weight: 799.98. | |
| Leucomycin A4 | It is produced by the strain of Str. kitasatoensis. It's a macrolide antibiotic. It has strong anti-gram-positive bacterial effect, and also has an effect on spirochetes, rickettsium and Chlamydia. After the C3 position on the lactone ring in the structure is acetylated, the activity in vitro is reduced, but the activity in vivo is enhanced, and the toxicity is also reduced. The antibacterial activity of Leucomycin group A is stronger than group B. It has been used in clinical and the indications are the same as erythromycin. Alternative Names: Leukomycin A4; Leucomycin V 3-acetate 4''-butanoate; KitasaMycin A4. Grades: >99% by HPLC. CAS No. 18361-46-1. Molecular formula: C41H67NO15. Mole weight: 813.97. | |
| Leucomycin A5 | It is produced by the strain of Str. kitasatoensis. It's a macrolide antibiotic. It has strong anti-gram-positive bacterial effect, and also has an effect on spirochetes, rickettsium and Chlamydia. After the C3 position on the lactone ring in the structure is acetylated, the activity in vitro is reduced, but the activity in vivo is enhanced, and the toxicity is also reduced. The antibacterial activity of Leucomycin group A is stronger than group B. It has been used in clinical and the indications are the same as erythromycin. Alternative Names: Kitasamycin A5; Turimycin H4; Leukomycin A5; Leucomycin V 4''-butanoate. Grades: >98% by HPLC. CAS No. 18361-45-0. Molecular formula: C39H65NO14. Mole weight: 771.94. | |
| Leucomycin A6 | Leucomycin A6 is a main component of YL-704, a macrolide antibiotic complex isolated from Streptomyces platensis subsp. malvinus. It is active against gram-positive bacteria. Alternative Names: YL-704B3; YL 704B3; YL 704 B3; Platenomycin-B3. CAS No. 18361-48-3. Molecular formula: C40H65NO15. Mole weight: 799.9. | |
| Leucomycin A9 | It is produced by the strain of Str. kitasatoensis. It's a macrolide antibiotic. It has strong anti-gram-positive bacterial effect, and also has an effect on spirochetes, rickettsium and Chlamydia. After the C3 position on the lactone ring in the structure is acetylated, the activity in vitro is reduced, but the activity in vivo is enhanced, and the toxicity is also reduced. The antibacterial activity of Leucomycin group A is stronger than group B. It has been used in clinical and the indications are the same as erythromycin. Alternative Names: Turimycin H2; Leucomycin V, 4B-acetate. CAS No. 18361-49-4. Molecular formula: C37H61NO14. Mole weight: 743.88. | |
| Leucomycin complex | Leucomycin complex is a family of closely related macrocyclic lactone antibiotics produced by streptomyces kitasatoensis. It is an animal health product for control of gram positive bacteria, gram negative cocci, leptospira and mycoplasma. Alternative Names: Kitasamycin A1; Turimycin H5; Leucomycin V 4-isovalerate. Grades: >95% by HPLC. CAS No. 1392-21-8. Molecular formula: C35H59NO13. Mole weight: 701.8. | |
| Leucomycin U | It is produced by the strain of Str. kitasatoensis. It's a macrolide antibiotic. It has strong anti-gram-positive bacterial effect, and also has an effect on spirochetes, rickettsium and Chlamydia. After the C3 position on the lactone ring in the structure is acetylated, the activity in vitro is reduced, but the activity in vivo is enhanced, and the toxicity is also reduced. The antibacterial activity of Leucomycin group A is stronger than group B. It has been used in clinical and the indications are the same as erythromycin. Alternative Names: Deisovaleryl josamycin; Deisovaleryl leucomycin A3; Leucomycin V 3-acetate; 4''-Deisovaleryljosamycin. CAS No. 31642-61-2. Molecular formula: C37H61NO14. Mole weight: 743.88. | |
| Leucomycin V | It is produced by the strain of Str. kitasatoensis. It's a macrolide antibiotic. It has strong anti-gram-positive bacterial effect, and also has an effect on spirochetes, rickettsium and Chlamydia. After the C3 position on the lactone ring in the structure is acetylated, the activity in vitro is reduced, but the activity in vivo is enhanced, and the toxicity is also reduced. The antibacterial activity of Leucomycin group A is stronger than group B. It has been used in clinical and the indications are the same as erythromycin. Alternative Names: Selectomycin; Turimycin; Antibiotic A 6599; Antibiotic JA-6599; Stereomycine; 4''-Deacylturimycin H; Deacylleucomycin A1; Deisovaleryl leucomycin A1. Grades: 97%. CAS No. 22875-15-6. Molecular formula: C35H59NO13. Mole weight: 701.84. | |
| Leucomycin v,3-acetate 4b-(3-methylbutanoate)9-propanoate | Leucomycin v,3-acetate 4b-(3-methylbutanoate)9-propanoate. CAS No. 40922-77-8. Purity: 96%. Product ID: ACM40922778. Molecular formula: C45H73NO16. Mole weight: 884.06. IUPAC Name: [6-[6-[[4-acetyloxy-5-methoxy-9,16-dimethyl-2-oxo-7-(2-oxoethyl)-10-propanoyloxy-1-oxacyclohexadeca-11,13-dien-6-yl]oxy]-4-(dimethylamino)-5-hydroxy-2-methyloxan-3-yl]oxy-4-hydroxy-2,4-dimethyloxan-3-yl]3-methylbutanoate. Canonical SMILES: CCC(=O)OC1C=CC=CCC(OC(=O)CC(C(C(C(CC1C)CC=O)OC2C(C(C(C(O2)C)OC3CC(C(C(O3)C)OC(=O)CC(C)C)(C)O)N(C)C)O)OC)OC(=O)C)C. ECNumber: 255-140-7. Alfa Chemistry - ISO 9001:32057 Certified. |  |
| Leuconolam | Leuconolam comes from the herbs of Alstonia scholaris. Alternative Names: (8aR,12aS,14bS)-8a-Ethyl-7,8,8a,10,11,12a-hexahydro-12a-hydroxyindolizino[8,1-ef][1]benzazonine-6,13(5H,9H)-dione. Grades: 0.97. CAS No. 93710-27-1. Molecular formula: C19H22N2O3. Mole weight: 326.4. | |
| Leuconostoc Mesenteries Freeze Dried Powder | L. mesenteries is a bacterial species sometimes associated with fermentation. It is a type of bacteria that focuses on gastrointestinal and immune health. Applications: dietary supplements - capsules, powder, tablets. food - bars, powdered beverages. Group: Probiotics. Synonyms: Leuconostoc Mesenteries + Vitamin; Leuconostoc Mesenteries. Activity: 10 billion CFU/g or more. Stability: 24 Months. Appearance: White To Light Yellow-Colored, Free-Flowing Powder. Storage: Recommend storage at refrigeration (4 °C) or frozen temperature (-18 °C) in original, sealed package until processed. Form: Powder. Leuconostoc Strains. Cat No: PRBT-027. | |
| Leuconostoc mesenteroides Glucose-6-phosphate Dehydrogenase, Recombinant | Glucose-6-phosphate dehydrogenase (G6PD or G6PDH) (EC 1.1.1.49) is a cytosolic enzyme that catalyzes the chemical reaction:D-glucose 6-phosphate + NADP+ <-> 6-phospho-D-glucono-1,5-lactone + NADPH + H+. This enzyme is in the pentose phosphate pathway, a metabolic pathway that supplies reducing energy to cells (such as erythrocytes) by maintaining the level of the co-enzyme nicotinamide adenine dinucleotide phosphate (NADPH). Glucose 6-phosphate dehydrogenase (g-6-p-dh) is a key regulatory enzyme in the first step of the pentose phosphate pathway. g-6-p-dh is a glycoprotein with a molecular mass of 128 kda (gel filtration). Applications: Glucose-6-phosphate.its/mg protein (biuret). Storage: 2-8°C. Form: Type I, Lyophilized powder containing Ficoll and Tris buffer salts; Type II, ammonium sulfate suspension, Supplied in 3.2M ammonium sulfate containing 50mM Tris and 1mM magnesium chloride, pH 7.5. Source: E. coli. Species: Leuconostoc mesenteroides. EC 1.1.1.49; NADP-glucose-6-phosphate dehydrogenase; Zwischenferment; D-glucose 6-phosphate dehydrogenase; glucose 6-phosphate dehydrogenase (NADP); NADP-dependent glucose 6-phosphate dehydrogenase; 6-phosphoglucose dehydrogenase; Entner-Doudoroff enzyme; glucose-6-phosphate 1-dehydrogenase; G6PDH; GPD; glucose-6-phosphate dehydrogenase; 9001-40-5. Cat No: DIA-323. | |
| LEUCOPTERIN | LEUCOPTERIN. Alternative Names: 2-AMINO-4,6,7-TRIHYDROXYPTERIDINE; LEUCOPTERIN; 2-aminopteridine-4,6,7-triol; 2-Amino-5,8-dihydropteridine-4,6,7(1H)-trione; 2-amino-5,8-dihydro-1H-pteridine-4,6,7-trione; 2-azanyl-5,8-dihydro-1H-pteridine-4,6,7-trione. Grades: 95%. CAS No. 492-11-5. Molecular formula: C6H5N5O3. Mole weight: 195.14. | |
| Leucosceptoside A | Leucosceptoside A is a natural compound isolated from the dried roots of Clerodendrum bungei. Grades: 97.0%. CAS No. 83529-62-8. Molecular formula: C30H38O15. Mole weight: 638.619. | |
| Leucoside | Leucoside is a flavonoid isolated from the herbs of Aesculus L. Alternative Names: Kaempferol 3-sambubioside; 5,7-Dihydroxy-2-(4-hydroxyphenyl)-4-oxo-4H-chromen-3-yl 2-O-β-D-x ylopyranosyl-β-D-glucopyranoside. Grades: > 95%. CAS No. 27661-51-4. Molecular formula: C26H28O15. Mole weight: 580.5. | |
| Leucoside | Leucoside. Group: Biochemicals. Alternative Names: Kaempferol 3-sambubioside. Grades: Plant Grade. CAS No. 27661-51-4. Pack Sizes: 10mg. Molecular Formula: C26H28O15, Molecular Weight: 580.491999999999. US Biological Life Sciences. | Worldwide |
| Leucoson impurity 12 | Leucoson impurity 12. Uses: For analytical and research use. Molecular formula: C22H30N6OS. Mole weight: 426.58. Catalog: APB10891. | |
| Leucoson Impurity 2 | Leucoson Impurity 2. Uses: For analytical and research use. Molecular formula: C13H15NO4S. Mole weight: 281.33. Catalog: APB12206. | |
| Leucoson Impurity 3 | Leucoson Impurity 3. Uses: For analytical and research use. Molecular formula: C13H15NO4S. Mole weight: 281.33. Catalog: APB12205. | |
| Leucoson Impurity 4 | Leucoson Impurity 4. Uses: For analytical and research use. Molecular formula: C15H19NO4S. Mole weight: 309.38. Catalog: APB12208. | |
| Leucoson Impurity 5 | Leucoson Impurity 5. Uses: For analytical and research use. Molecular formula: C14H19NO4S. Mole weight: 297.37. Catalog: APB12207. | |
| Leucoson Impurity 6 | Leucoson Impurity 6. Uses: For analytical and research use. Molecular formula: C14H19NO4S. Mole weight: 297.37. Catalog: APB12209. | |
| Leucoson Impurity 7 | Leucoson Impurity 7. Uses: For analytical and research use. Molecular formula: C14H19NO4S. Mole weight: 297.37. Catalog: APB12210. | |
| Leucotylic acid | Leucotylic acid. Alternative Names: (3S,3aS,4S,5aR,5bR,7aR,8R,11aR,11bR,13aR,13bR)-4-hydroxy-3-(2-hydroxypropan-2-yl)-5a,5b,8,11a,13b-pentamethylicosahydro-1H-cyclopenta[a]chrysene-8-carboxylic acid; 16β,22-Dihydroxyhopan-23-oic acid; A'-Neogammaceran-23-oic acid, 16,22-dihydroxy-, (4α,16β)-; Leucotylinsaeure. CAS No. 5056-37-1. Molecular formula: C30H50O4. Mole weight: 474.72. | |
| Leucovorin Calcium | leucovorin calcium is an active metabolite of folic acid (also called folinic acid and citrovorum factor), which does not require metabolism by dihydrofolate reductase, the molecular target of folate antagonist-type chemotherapeutic drugs. Leucovorin calcium counteracts the toxic effects of these medications, 'rescuing' the patient while permitting the antitumor activity of the folate antagonist. This agent also potentiates the effects of fluorouracil and its derivatives by stabilizing the binding of the drug's metabolite to its target enzyme, thus prolonging drug activity. Alternative Names: IST5-002; IST5 002; IST5002; Benzyl-AMP; N6-Benzyladenosine-5'-phosphate; Folinic acid calcium salt; Calcium Folinate. CAS No. 1492-18-8. Molecular formula: C20H21N7O7.Ca. Mole weight: 513.52. | |
| Leucovorin calcium pentahydrate | Leucovorin is a derivative of folic acid, which can be used to increase levels of folic acid under conditions favoring folic acid inhibition. Alternative Names: Folinic acid. Grades: >98%. CAS No. 6035-45-6. Molecular formula: C21H25CaN7O7.5H2O. Mole weight: 601.58. | |
| Leucovorin Calcium Pentahydrate (Folinic acid) | Leucovorin (Folinic acid) Calcium Pentahydrate is a derivative of folic acid, which can be used to increase levels of folic acid under conditions favoring folic acid inhibition.Solutions are unstable and should be fresh-prepared. Group: Inhibitors. Alternative Names: NSC-3590 Calcium Pentahydrate, Calcium Folinatc, Citrovorum Factor. CAS No. 6035-45-6. Pack Sizes: 250mg. Product ID: S1236. Formula: C20H31CaN7O12. Smiles: C1C(N(C2=C(N1)N=C(NC2=O)N)C=O)CNC3=CC=C(C=C3)C(=O)NC(CCC(=O)[O-])C(=O)[O-].O.O.O.O.O.[Ca+2]. Storage Conditions: 4°C (in the dark). |  United States; Europe |
| Leucovorin Calcium Salt Pentahydrate (N-[4-[[ (2-Amino-5-formyl-1, 4, 5, 6, 7, 8-hexahydro-4-oxo-6-pteridinyl) methyl]amino]benzoyl]-L-glutamic Acid Calcium Salt, Calcium Levofolinate, Levoleucovorin Calcium, Folinic Acid Calcium Salt) | An intermediate product of the metabolism of Folic Acid; the active form into which that acid is converted in the body, ascorbic acid being a necessary factor in the conversion process. Group: Biochemicals. Alternative Names: N-[4-[[ (2-Amino-5-formyl-1, 4, 5, 6, 7, 8-hexahydro-4-oxo-6-pteridinyl) methyl]amino]benzoyl]-L-glutamic Acid Calcium Salt Pentahydrate; Calcium Folinate; Folaren; Foliben; Folidan; Folinic Acid Calcium Salt Pentahydrate; Lederfolat; Lederfolin. Grades: Highly Purified. CAS No. 6035-45-6. Pack Sizes: 100mg, 500mg, 1g. Molecular Formula: C20H31CaN7O12, Molecular Weight: 601.58. US Biological Life Sciences. | Worldwide |
| Leucovorin-d4 Calcium Salt Pentahydrate | An labeled intermediate product of the metabolism of Folic Acid. This compound is a mixture of diastereomers. Group: Biochemicals. Alternative Names: N-[4-[[ (2-Amino-5-formyl-1, 4, 5, 6, 7, 8-hexahydro-4-oxo-6-pteridinyl) methyl]amino]benzoyl-d4]-L-glutamic Acid Calcium Salt Pentahydrate; Calcium Folinate-d4; Folaren-d4; Foliben-d4; Folidan-d4; Folinic Acid-d4 Calcium Salt Pentahydrate. Grades: Highly Purified. Pack Sizes: 250ug. US Biological Life Sciences. | Worldwide |
| leucyl aminopeptidase | A zinc enzyme isolated from pig kidney and cattle lens; activated by heavy metal ions. Type example of peptidase family M17. Group: Enzymes. Synonyms: leucine aminopeptidase; leucyl peptidase; peptidase S; cytosol aminopeptidase; cathepsin III; L-leucine aminopeptidase; leucinaminopeptidase; leucinamide aminopeptidase; FTBL proteins; proteinates FTBL; aminopeptidase II; aminopeptidase III; aminopeptidase I. Enzyme Commission Number: EC 3.4.11.1. CAS No. 9001-61-0. LAP. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-4007; leucyl aminopeptidase; EC 3.4.11.1; 9001-61-0; leucine aminopeptidase; leucyl peptidase; peptidase S; cytosol aminopeptidase; cathepsin III; L-leucine aminopeptidase; leucinaminopeptidase; leucinamide aminopeptidase; FTBL proteins; proteinates FTBL; aminopeptidase II; aminopeptidase III; aminopeptidase I. Cat No: EXWM-4007. | |
| Leucylarginine | Leucylarginine hinders antinociception induced by L-arginine. Alternative Names: L-Leucyl-L-arginine; Leu-arg; Leucyl-arginine; L-Leu-L-Arg. Grades: >98%. CAS No. 26607-15-8. Molecular formula: C12H25N5O3. Mole weight: 287.36. | |
| leucyl endopeptidase | From leaves of the spinach plant (Spinacia oleracea). Group: Enzymes. Synonyms: plant Leu-proteinase; leucine-specific serine proteinase; leucine endopeptidase; spinach serine proteinase (leucine specific); spinach leucine-specific serine proteinase; Leu-proteinase. Enzyme Commission Number: EC 3.4.21.57. CAS No. 136396-22-0. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-4148; leucyl endopeptidase; EC 3.4.21.57; 136396-22-0; plant Leu-proteinase; leucine-specific serine proteinase; leucine endopeptidase; spinach serine proteinase (leucine specific); spinach leucine-specific serine proteinase; Leu-proteinase. Cat No: EXWM-4148. | |
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