BOC Sciences provides a wide range of research chemicals and biochemicals including inhibitors, building blocks, GMP Products, impurities and metabolites, APIs for Veterinary, Natural Compounds, ADCs, Stem Cell Molecule and chiral compounds.
| Product | Description | |
|---|---|---|
| L-Cyclohexylglycinol | L-Cyclohexylglycinol (CAS# 845714-30-9 ) is a useful research chemical. Alternative Names: H-Chg-ol; H-Phg(hexahydro)-ol; (S)-2-Amino-2-cyclohexylethanol; (2S)-2-Amino-2-cyclohexylethan-1-ol. CAS No. 845714-30-9. Molecular formula: C8H17NO. Mole weight: 143.23. |  |
| L-Cyclopentylglycine | L-Cyclopentylglycine. Alternative Names: Gly(cyclopentyl)-OH; (S)-Amino-cyclopentyl-acetic acid. Grades: ≥ 99% (Assay). CAS No. 2521-84-8. Molecular formula: C7H13NO2. Mole weight: 143.10. | |
| L-Cycloserine | It is produced by the strain of Erwinia uredovora 821. L-cycloserine is an excitatory amino acid that is effective against Mycobacterium tuberculosis. It has anti-gram-negative bacterial activity. Uses: Inhibitor of ketosphinganine synthase, leading to blockade of sphingosine biosynthesis. Alternative Names: (S)-(-)-Cycloserine; (S)-Cycloserine; Cyclo-L-serine; L-4-Amino-3-isoxazolidinone; L-Cycloserine; Levcycloserine; (S)-4-Amino-3-isoxazolidinone; Levcicloserina; Levcycloserinum. Grades: ≥ 98% (HPLC). CAS No. 339-72-0. Molecular formula: C3H6N2O2. Mole weight: 102.09. | |
| L-Cysteinamide hydrochloride | L-Cysteinamide hydrochloride. Alternative Names: H-Cys-NH2 HCl; (2R)-2-Amino-3-mercaptopropanamide hydrochloride. CAS No. 16359-98-1. Molecular formula: C3H9ClN2OS. Mole weight: 156.63. | |
| L-Cysteine Ethyl Ester Hydrochloride | L-Cysteine ethyl ester hydrochloride is widely used in food additive, cosmetic, pharmaceutical area. Alternative Names: Cystanin; Ethyl L-cysteinate hydrochloride; Ethyl cysteinate hydrochloride; NSC 117387; NSC 519837. Grades: ≥ 99% (Titration). CAS No. 868-59-7. Molecular formula: C5H12ClNO2S. Mole weight: 185.67. | |
| L-Cysteine methyl ester hydrochloride | L-Cysteine methyl ester hydrochloride (L-CMEH),an alkylamine derivative, is an expectorants to increase mucous excretion and also inhibits binding of ethynylestradiol metabolites to protein and nucleic acids. Alternative Names: methyl (2R)-2-amino-3-sulfanylpropanoate;hydrochloride; cysteine methyl ester; Cytoclair; mecysteine; mecysteine hydrochloride; mecysteine hydrochloride, (DL)-isomer; mecysteine hydrochloride, (L)-isomer; methyl cysteine; Visclair. Grades: 95%. CAS No. 18598-63-5. Molecular formula: C4H10ClNO2S. Mole weight: 171.65. | |
| L-Cysteinol(4-MeBzl) | L-Cysteinol(4-MeBzl). Alternative Names: H-L-Cys(4-MeBzl)-ol; S-4-methylbenzyl-L-cysteinol. Grades: ≥ 99% (HPLC). CAS No. 438237-83-3. Molecular formula: C11H17NOS. Mole weight: 211.32. | |
| L-Cysteinol(Bzl) | L-Cysteinol(Bzl). Alternative Names: H-L-Cys(Bzl)-ol; S-Benzyl-L-cysteinol; (R)-2-Amino-3-(benzylthio)propan-1-ol; (2R)-2-Amino-3-(Benzylsulfanyl)Propan-1-ol. Grades: ≥ 99.5% (HPLC). CAS No. 85803-43-6. Molecular formula: C10H15NOS. Mole weight: 197.30. | |
| L-Cysteinyl-L-glutamine | L-Cysteinyl-L-glutamine is a dipeptide composed of cysteine (L-Cys) and glutamine (L-Gln). Cysteine is a sulfur-containing amino acid known for its role in forming disulfide bonds, which are critical for protein structure and stability. Glutamine, on the other hand, is a key amino acid involved in protein synthesis, nitrogen metabolism, and cellular energy. This dipeptide could be important in studies related to redox biology, protein folding, or cellular stress responses, particularly those involving glutathione synthesis, where cysteine is a precursor. Alternative Names: CQ; Cys-Gln; H-Cys-Gln-OH; H-CQ-OH; L-Glutamine, L-cysteinyl-; Cysteinyl-glutamine. Grades: ≥95%. CAS No. 629653-15-2. Molecular formula: C8H15N3O4S. Mole weight: 249.29. | |
| L-Cysteinyl-L-tyrosine | L-Cysteinyl-L-tyrosine is a dipeptide consisting of L-cysteine and L-tyrosine. L-cysteine is a sulfur-containing amino acid involved in antioxidant defense and the formation of disulfide bonds in proteins, while L-tyrosine is an aromatic amino acid important for synthesizing neurotransmitters like dopamine and norepinephrine. This dipeptide might be studied for its potential effects on oxidative stress, neurochemistry, and protein stability, combining the antioxidant properties of cysteine with the neurotransmitter-related functions of tyrosine. Alternative Names: CY; Cysteinyltyrosine; Cys-Tyr; Cysteinyl-tyrosine; H-Cys-Tyr-OH; H-CY-OH; L-Tyrosine, N-L-cysteinyl-; Tyrosine, N-L-cysteinyl-; Tyrosine, N-L-cysteinyl-, L-; N-L-Cysteinyl-L-tyrosine. Grades: ≥95%. CAS No. 1089-23-2. Molecular formula: C12H16N2O4S. Mole weight: 284.33. | |
| L-Cystine bis(4-methyl-β-naphthylamide) acetate (Disulfide bond) | L-Cystine bis(4-methyl-β-naphthylamide) acetate (Disulfide bond). Alternative Names: (H-Cys-4MβNA)2 AcOH (Disulfide bond). Molecular formula: C30H34N4O6S2. Mole weight: 610.75. | |
| L-Cystine bis-4-nitroanilide | A substrate for measuring cystyl-aminopeptidase. Alternative Names: (H-L-Cys-pNA)2; L-CYSTINE BIS-P-NITROANILIDE; cystine-bis-4-nitroanilide; L-CYSTINYL-BIS-4-NITROANILIDE. Grades: 95%. CAS No. 34199-07-0. Molecular formula: C18H20N6O6S2. Mole weight: 480.50. | |
| L-Cystine bis(allyl ester) bis(p-toluenesulfonate) (Disulfide bond) | L-Cystine bis(allyl ester) bis(p-toluenesulfonate) (Disulfide bond). Alternative Names: (H-Cys-allyl ester)2 2Tos-OH (Disulfide bond). CAS No. 142601-71-6. Molecular formula: C26H36N2O10S4. Mole weight: 664.83. | |
| L-Cystine bis-amide dihydrochloride | L-Cystine bis-amide dihydrochloride. Alternative Names: (H-L-Cys-NH2)2 2HCl; L-Cystine 2HCl; L-Cystine dihydrochloride. Grades: 95%. CAS No. 22671-21-2. Molecular formula: C6H14N4O2S2·2HCl. Mole weight: 311.26. | |
| L-Cystine bis(β-naphthylamide) | L-Cystine bis(β-naphthylamide). Alternative Names: (H-L-Cys-βNA)2L-3,3'-Dithiobis(2-amino-N-2-naphthylpropionamide); (H-CYS-BETANA)2; L-Cystine-di-2-naphthylamide. Grades: 95%. CAS No. 1259-69-4. Molecular formula: C26H26N4O2S2. Mole weight: 490.65. | |
| L-Cystine bis(β-naphthylamide) dihydrochloride | L-Cystine bis(β-naphthylamide) dihydrochloride. Alternative Names: (H-L-Cys-βNA)2 2HCl; L-cystine-di-2-naphthylamide dihydrochloride. Grades: 95%. CAS No. 100900-22-9. Molecular formula: C26H26N4O2S2·2HCl. Mole weight: 563.57. | |
| L-Cystine bis(tert-butyl ester) dihydrochloride | L-Cystine bis(tert-butyl ester) dihydrochloride. Alternative Names: (H-L-Cys-OtBu)2 2HCl; tert-butyl (2R)-2-amino-3-[[(2R)-2-amino-3-[(2-methylpropan-2-yl)oxy]-3-oxopropyl]disulfanyl]propanoate,dihydrochloride; (2R,2'R)-Di-tert-butyl 3,3'-disulfanediylbis(2-aminopropanoate) dihydrochloride. Grades: ≥ 97% (TLC). CAS No. 38261-78-8. Molecular formula: C14H28N2O4S2·2HCl. Mole weight: 425.44. | |
| L-Cystine dihydrochloride | L-Cystine is a non-essential amino acid for human development. L-Cystine is formed by the dimerization of two cysteines through the sulfur. Alternative Names: L-Cystine, hydrochloride (1:2); Cystine, dihydrochloride, L-; Cystine dihydrochloride; (2R,2'R)-3,3'-disulfanediylbis(2-aminopropanoic acid) dihydrochloride. Grades: ≥95%. CAS No. 30925-07-6. Molecular formula: C6H12N2O4S2.2HCl. Mole weight: 313.22. | |
| L-DABA | L-DABA, (L-2,4-Diaminobutyric acid) is a noncompetitive GABA transaminase inhibitor (IC50 > 500 μM) with antitumor activity in vivo and in vitro. Alternative Names: (2S)-2,4-diaminobutanoic acid; 2,4-diaminobutyric acid; 2,4-diaminobutyric acid dihydrochloride, (+-)-isomer; 2,4-diaminobutyric acid dihydrochloride, (S)-isomer; 2,4-diaminobutyric acid monohydrochloride, (+-)-isomer; 2,4-diaminobutyric acid monohydrochloride, (S)-isomer; 2,4-diaminobutyric acid, (+)-isomer; 2,4-diaminobutyric acid, (+-)-isomer; 2,4-diaminobutyric acid, (R)-isomer; 2,4-diaminobutyric acid, (S)-isomer; L-2,4-diaminobutyric acid. CAS No. 1758-80-1. Molecular formula: C4H10N2O2. Mole weight: 118.13. | |
| LDLR-fucosyltransferaseAS fusion protein (312-320) | LDLR-fucosyltransferaseAS fusion protein (312-320). | |
| LDLR-fucosyltransferaseAS fusion protein (315-323) | LDLR-fucosyltransferaseAS fusion protein (315-323). | |
| L-dopachrome tautomerase (197-205) | L-dopachrome tautomerase (197-205) is amino acids 197 to 205 fragment of L-dopachrome tautomerase. L-dopachrome tautomerase is involved in the pathway melanin biosynthesis, which is part of Pigment biosynthesis. It catalyzes the conversion of L-dopachrome into 5,6-dihydroxyindole-2-carboxylic acid (DHICA). Alternative Names: DCT (197-205); L-dopachrome Delta-isomerase (197-205); TRP-2 (197-205). | |
| L-dopachrome tautomerase (241-250) | L-dopachrome tautomerase (241-250) is amino acids 241 to 250 fragment of L-dopachrome tautomerase. L-dopachrome tautomerase is involved in the pathway melanin biosynthesis, which is part of Pigment biosynthesis. It catalyzes the conversion of L-dopachrome into 5,6-dihydroxyindole-2-carboxylic acid (DHICA). Alternative Names: DCT (241-250); L-dopachrome Delta-isomerase (241-250); TRP-2 (241-250). | |
| L-dopachrome tautomerase (360-368) | L-dopachrome tautomerase (360-368) is amino acids 360 to 368 fragment of L-dopachrome tautomerase. L-dopachrome tautomerase is involved in the pathway melanin biosynthesis, which is part of Pigment biosynthesis. It catalyzes the conversion of L-dopachrome into 5,6-dihydroxyindole-2-carboxylic acid (DHICA). Alternative Names: DCT (360-368); L-dopachrome Delta-isomerase (360-368); TRP-2 (360-368). | |
| L-dopachrome tautomerase (387-395) | L-dopachrome tautomerase (387-395) is amino acids 387 to 395 fragment of L-dopachrome tautomerase. L-dopachrome tautomerase is involved in the pathway melanin biosynthesis, which is part of Pigment biosynthesis. It catalyzes the conversion of L-dopachrome into 5,6-dihydroxyindole-2-carboxylic acid (DHICA). Alternative Names: DCT (387-395); L-dopachrome Delta-isomerase (387-395); TRP-2 (387-395). | |
| L-dopachrome tautomerase (60-74) | L-dopachrome tautomerase (60-74) is amino acids 60 to 74 fragment of L-dopachrome tautomerase. L-dopachrome tautomerase is involved in the pathway melanin biosynthesis, which is part of Pigment biosynthesis. It catalyzes the conversion of L-dopachrome into 5,6-dihydroxyindole-2-carboxylic acid (DHICA). Alternative Names: DCT (60-74); L-dopachrome Delta-isomerase (60-74); TRP-2 (60-74). | |
| LEAP2 | LEAP2 is a cysteine-rich cationic antimicrobial peptide that is expressed predominantly in the liver. It has activity against gram-positive bacteria and yeasts. Alternative Names: Liver-expressed antimicrobial peptide 2; LEAP-2. Molecular formula: C192H319N64O57S4. Mole weight: 4563.40. | |
| LEAP-2 | LEAP-2 is an antibacterial peptide isolated from Homo sapiens. Alternative Names: Met-Thr-Pro-Phe-Trp-Arg-Gly-Val-Ser-Leu-Arg-Pro-Ile-Gly-Ala-Ser-Cys-Arg-Asp-Asp-Ser-Glu-Cys-Ile-Thr-Arg-Leu-Cys-Arg-Lys-Arg-Arg-Cys-Ser-Leu-Ser-Val-Ala-Gln-Glu. | |
| LEAP-2-RA1 peptide precursor, partial | LEAP-2-RA1 peptide precursor, partial is an antibacterial peptide isolated from Odorrana andersonii (golden crossband frog). Alternative Names: Gln-Val-Ser-Gln-Arg-Arg-Gly-Pro-Arg-Met-Thr-Pro-Phe-Trp-Arg-Ala-Val-Gly-Asn-Lys-Pro-Val-Gly-Ala-Phe-Cys-Gln-Gln-Gly-Leu-Glu-Cys-Thr-Thr-Lys-Val-Cys-Arg-Arg-Gly-His-Cys-Thr. | |
| Lebocin | Lebocin is an antibacterial peptide isolated from Pseudoplusia includens. Alternative Names: Pro-Asp-Phe-Lys-Leu-Pro-Gly-Met-Lys-Tyr-Pro-Ile-Pro-Ala-Thr-Thr-Pro-Pro-Phe-Val-Pro-Lys-Arg-Ser-Arg-Phe-Pro-Ile-Tyr-Ala. Grades: 97.5%. Molecular formula: C166H251N39O38S. Mole weight: 3433. | |
| Lebocin-1/2 precursor | Lebocin-1/2 precursor is an antibacterial peptide isolated from Bombyx mori. It has activity against gram-positive bacteria and gram-negative bacteria. Alternative Names: Asp-Leu-Arg-Phe-Leu-Tyr-Pro-Arg-Gly-Lys-Leu-Pro-Val-Pro-Thr-Pro-Pro-Pro-Phe-Asn-Pro-Lys-Pro-Ile-Tyr-Ile-Asp-Met-Gly-Asn-Arg-Tyr. Grades: 98.2%. Molecular formula: C179H271N45O43S. Mole weight: 3773.46. | |
| Lebocin-3 precursor | Lebocin-3 precursor is an antibacterial peptide isolated from Bombyx mori. Alternative Names: Asp-Leu-Arg-Phe-Leu-Tyr-Pro-Arg-Gly-Lys-Leu-Pro-Val-Pro-Thr-Leu-Pro-Pro-Phe-Asn-Pro-Lys-Pro-Ile-Tyr-Ile-Asp-Met-Gly-Asn-Arg-Tyr. Grades: 96.3%. Molecular formula: C180H275N45O43S. Mole weight: 3789.5. | |
| Lebocin-4 precursor | Lebocin-4 precursor is an antibacterial peptide isolated from Bombyx mori. It has activity against gram-positive bacteria and gram-negative bacteria. Alternative Names: Asp-Leu-Arg-Phe-Trp-Asn-Pro-Arg-Glu-Lys-Leu-Pro-Leu-Pro-Thr-Leu-Pro-Pro-Phe-Asn-Pro-Lys-Pro-Ile-Tyr-Ile-Asp-Met-Gly-Asn-Arg-Tyr. Grades: 97.3%. Molecular formula: C184H277N47O45S. Mole weight: 3899.57. | |
| Lebocin-like anionic peptide 1 | Lebocin-like anionic peptide 1 is an antibacterial peptide isolated from Galleria mellonella. It has activity against gram-positive bacteria and fungi. Alternative Names: Glu-Ala-Asp-Glu-Pro-Leu-Trp-Leu-Tyr-Lys-Gly-Asp-Asn-Ile-Glu-Arg-Ala-Pro-Thr-Thr-Ala-Asp-His-Pro-Ile-Leu-Pro-Ser-Ile-Ile-Asp-Asp-Val-Lys-Leu-Asp-Pro-Asn-Arg-Arg-Tyr-Ala. Molecular formula: C215H334N58O68. Mole weight: 4819.36. | |
| Lengsin (270-279) | Lengsin is a survivor of an ancient family of class I glutamine synthetases in eukaryotes that has undergone evolutionary re-engineering for a tissue-specific, noncatalytic role in the lens of the vertebrate eye. | |
| LEP (116-130) (mouse) TFA | LEP (116-130) (mouse) TFA is a synthetic leptin peptide fragment. Alternative Names: Leptin Fragment 116-130 Amide mouse TFA; LEP(116-130) (mouse) TFA; H-Ser-Cys-Ser-Leu-Pro-Gln-Thr-Ser-Gly-Leu-Gln-Lys-Pro-Glu-Ser-NH2.TFA; L-seryl-L-cysteinyl-L-seryl-L-leucyl-L-prolyl-L-glutaminyl-L-threonyl-L-seryl-glycyl-L-leucyl-L-glutaminyl-L-lysyl-L-prolyl-L-alpha-glutamyl-L-serinamide trifluoroacetic acid; L-Serinamide, L-seryl-L-cysteinyl-L-seryl-L-leucyl-L-prolyl-L-glutaminyl-L-threonyl-L-serylglycyl-L-leucyl-L-glutaminyl-L-lysyl-L-prolyl-L-α-glutamyl-, 2,2,2-trifluoroacetate (1:1). Grades: ≥95%. CAS No. 2828433-16-3. Molecular formula: C66H110F3N19O26S. Mole weight: 1674.77. | |
| Leptin (116-130) (human) | Leptin (116-130) (human) is a fragment of human leptin, which is an adipose tissue-derived protein encoded by an obesity gene and is involved in controlling food intake, energy expenditure and reproduction, as well as playing a role in immune regulation, inflammation, and hematopoiesis. Alternative Names: Obese Gene Peptide (116-130) (human); L-Serine, L-seryl-L-cysteinyl-L-histidyl-L-leucyl-L-prolyl-L-tryptophyl-L-alanyl-L-serylglycyl-L-leucyl-L-α-glutamyl-L-threonyl-L-leucyl-L-α-aspartyl-; H-Ser-Cys-His-Leu-Pro-Trp-Ala-Ser-Gly-Leu-Glu-Thr-Leu-Asp-Ser-OH; L-seryl-L-cysteinyl-L-histidyl-L-leucyl-L-prolyl-L-tryptophyl-L-alanyl-L-seryl-glycyl-L-leucyl-L-alpha-glutamyl-L-threonyl-L-leucyl-L-alpha-aspartyl-L-serine. Grades: ≥95%. CAS No. 2243207-12-5. Molecular formula: C70H106N18O24S. Mole weight: 1615.76. | |
| Leptin (22-56), human | Leptin (22-56) (human) is the fragment of leptin, a hormone produced by the fat cells in human body. Alternative Names: H-Val-Pro-Ile-Gln-Lys-Val-Gln-Asp-Asp-Thr-Lys-Thr-Leu-Ile-Lys-Thr-Ile-Val-Thr-Arg-Ile-Asn-Asp-Ile-Ser-His-Thr-Gln-Ser-Val-Ser-Ser-Lys-Gln-Lys-OH; L-valyl-L-prolyl-L-isoleucyl-L-glutaminyl-L-lysyl-L-valyl-L-glutaminyl-L-alpha-aspartyl-L-alpha-aspartyl-L-threonyl-L-lysyl-L-threonyl-L-leucyl-L-isoleucyl-L-lysyl-L-threonyl-L-isoleucyl-L-valyl-L-threonyl-L-arginyl-L-isoleucyl-L-asparagyl-L-alpha-aspartyl-L-isoleucyl-L-seryl-L-histidyl-L-threonyl-L-glutaminyl-L-seryl-L-valyl-L-seryl-L-seryl-L-lysyl-L-glutaminyl-L-lysine. Grades: >95%. CAS No. 183598-56-3. Molecular formula: C171H298N50O56. Mole weight: 3950.49. | |
| Leptin Fragment 116-130 Amide mouse | A synthetic leptin peptide fragment. Alternative Names: LEP 116-130. Grades: >95%. CAS No. 258276-95-8. Molecular formula: C64H109N19O24S. Mole weight: 1560.73. | |
| Leptin (human) | Leptin (human) is a peptide hormone secreted from white adipocytes and implicated in the regulation of food intake and energy balance. Alternative Names: 1: PN: WO0038651 SEQID: 1 unclaimed protein; 22-167-Protein (human gene obese 167-amino acid isoform precursor); Anti-obesity protein (human); Leptin (human clone 3 gene Ob); Leptin (human gene ob protein 146-amino acid fragment); Leptin (synthetic human mutant 15B); Protein (human gene ob active isoform). Grades: ≥95% by HPLC. CAS No. 177404-21-6. | |
| Leptoglycin | Leptoglycin is an antibacterial peptide isolated from Leptodactylus pentadactylus. Leptoglycin was able to inhibit the growth of Gram-negative bacteria Pseudomonas aeruginosa, Escherichia coli and Citrobacter freundii with minimal inhibitory concentrations (MICs) of 8 microM, 50 microM, and 75 microM respectively, but it did not show antimicrobial activity against Gram-positive bacteria (Staphylococcus aureus, Micrococcus luteus and Enterococcus faecalis), yeasts (Candida albicans and Candida tropicalis) and dermatophytes fungi (Microsporum canis and Trichophyton rubrum). Alternative Names: Gly-Leu-Leu-Gly-Gly-Leu-Leu-Gly-Pro-Leu-Leu-Gly-Gly-Gly-Gly-Gly-Gly-Gly-Gly-Gly-Leu-Leu. | |
| L-Ethionine | Ethionine is an antimetabolite and methionine antagonist. It also produces liver neoplasms. Uses: Ethionine-induced inhibition of protein synthesis and lowering of atp level in the liver. Alternative Names: H-Eth-OH; (S)-2-Amino-4-(ethylthio)butanoic acid. Grades: 98%. CAS No. 13073-35-3. Molecular formula: C6H13NO2S. Mole weight: 163.24. | |
| Leu14, Cys40, Exendin-4 | Leu14, Cys40, Exendin-4. Alternative Names: His-Gly-Glu-Gly-Thr-Phe-Thr-Ser-Asp-Leu-Ser-Lys-Gln-Leu-Glu-Glu-Glu-Ala-Val-Arg-Leu-Phe-Ile-Glu-Trp-Leu-Lys-Asn-Gly-Gly-Pro-Ser-Ser-Gly-Ala-Pro-Pro-Pro-Ser-Cys-NH2. Molecular formula: C188H289N51O61S. Mole weight: 4271.94. | |
| Leu-Ala-OH | This dipeptide inhibits ubiquitin-mediated protein degradation. Alternative Names: L-Leucyl-L-alanine. Grades: ≥ 97% (HPLC). CAS No. 7298-84-2. Molecular formula: C9H18N2O3. Mole weight: 202.25. | |
| Leu-Asp-AMC | Leu-Asp-AMC is a peptide substrate for Porphyromonas Gingivalis Dipeptidyl-Peptidase 11. Alternative Names: Leu-Asp-MCA; L-Leucyl-L-aspartic acid α-(4-methylcoumaryl-7-amide). CAS No. 929621-97-6. Molecular formula: C20H25N3O6. Mole weight: 403.43. | |
| Leucine benzyloxycarbonylhydrazide trifluoroacetate | Leucine benzyloxycarbonylhydrazide trifluoroacetate. Alternative Names: L-Leu-NHNHZ TFA; L-Leucin-benzyloxycarbonyl-hydrazid-trifluoracetate; H-L-Leu-NH-NH-Z,CF3-COOH; LEU-NHNH-Z TFA; Leu-NH-NH-Z CF3COOH. Grades: ≥ 99% (HPLC). CAS No. 19635-96-2. Molecular formula: C14H21N3O3·C2HO2F3. Mole weight: 393.40. | |
| 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. | |
| 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-phenylalanine | Leucyl-phenylalanine is a competitive inhibitor of both the peptidase and the esterase activities of carboxy peptidase Y. Alternative Names: L-leucyl-L-Phenylalanine. CAS No. 3063-5-6. Molecular formula: C15H22N2O3. Mole weight: 278.35. | |
| Leucyl-serine | Leucyl-serine is a dipeptide composed of leucine and serine. It is an incomplete breakdown product of protein digestion or protein catabolism. Alternative Names: L-leucyl-L-serine; H-LS-OH; Leu-Ser; N-Leucylserine; L-Leu-L-Ser; Leu-Ser-OH; N-L-leucyl-L-serine; L-Serine, L-leucyl-. Grades: ≥95% by HPLC. CAS No. 6209-12-7. Molecular formula: C9H18N2O4. Mole weight: 218.25. | |
| Leu-D-Leu | Leu-D-Leu is a specific substrate for D-peptidase S, an intracellular carboxypeptidase-like enzyme that preferentially hydrolyzes dipeptides containing hydrophobic D-amino acids. Alternative Names: l-Leucyl-d-leucine; D-Leucine, L-leucyl-; N-L-Leucyl-D-leucine; (R)-2-((S)-2-amino-4-methylpentanamido)-4-methylpentanoic acid. CAS No. 17665-02-0. Molecular formula: C12H24N2O3. Mole weight: 244.33. | |
| Leu-Gly-Gly-Gly | Leu-Gly-Gly-Gly is a tetrapeptide consisting of L-leucine and three glycine residues. L-leucine is a branched-chain amino acid critical for protein synthesis, muscle repair, and energy production. Glycine plays a role in various physiological processes, including neurotransmission and collagen synthesis. This peptide may support muscle recovery and overall metabolic functions, with L-leucine driving protein synthesis and glycine contributing to structural and functional roles in the body. Alternative Names: LGGG; Leucyl-glycyl-glycyl-glycine; L-Leucylglycylglycylglycine; H-Leu-Gly-Gly-Gly-OH; L-leucyl-glycyl-glycyl-glycine; H-LGGG-OH; Glycine, N-(N-(N-L-leucylglycyl)glycyl)-; N-(N-(N-L-Leucylglycyl)glycyl)-glycine. Grades: ≥90%. CAS No. 14857-78-4. Molecular formula: C12H22N4O5. Mole weight: 302.33. | |
| Leu-Gly-Leu-OH | Leu-Gly-Leu-OH. Alternative Names: L-Leucylglycyl-L-leucine; H2N-LGL-OH. Grades: ≥ 98% (TLC). CAS No. 19408-48-1. Molecular formula: C14H27N3O4. Mole weight: 301.39. | |
| Leu-Gly -naphthylamide | Leu-Gly -naphthylamide. Alternative Names: Leu-Gly beta-naphthylamide; (S)-2-Amino-4-methyl-N-(2-(naphthalen-2-ylamino)-2-oxoethyl)pentanamide. Grades: 95%. CAS No. 100930-00-5. Molecular formula: C18H23N3O2. Mole weight: 313.39. | |
| Leu-Gly-NH2 HBr | Leu-Gly-NH2 HBr. Alternative Names: L-Leucylglycine amide hydrobromide. Grades: ≥ 99% (TLC). CAS No. 28671-28-5. Molecular formula: C8H17N3O2·HBr. Mole weight: 268.15. | |
| Leu-Gly-Tyr | Leu-Gly-Tyr is a tripeptide composed of L-leucine, L-glycine, and L-tyrosine. L-leucine is a branched-chain amino acid essential for protein synthesis and muscle repair, L-glycine is a small amino acid involved in protein structure and neurotransmission, and L-tyrosine is an aromatic amino acid important for synthesizing neurotransmitters like dopamine and norepinephrine. This tripeptide may be studied for its impact on peptide stability, structure-function relationships in proteins, and potential roles in neurotransmitter-related pathways. It could also be relevant in research focused on amino acid interactions and therapeutic peptide development. Alternative Names: LGY; L-Leucylglycyl-L-tyrosine; L-Tyrosine, N-(N-L-leucylglycyl)-; Tyrosine, N-(N-L-leucylglycyl)-; H-Leu-Gly-Tyr-OH; H-LGY-OH; L-Leucyl-glycyl-L-tyrosine; Leucyl-glycyl-tyrosine. Grades: ≥90%. CAS No. 93993-14-7. Molecular formula: C17H25N3O5. Mole weight: 351.40. | |
| Leukocyte Proteinase-3 (169-177) | Leukocyte Proteinase-3 (169-177) is amino acids 169 to 177 fragment of Leukocyte Proteinase-3. Proteinase-3 is a serine protease enzyme expressed mainly in neutrophil granulocytes. In human neutrophils, proteinase 3 contributes to the proteolytic generation of antimicrobial peptides. | |
| Leu-Leu-OBzl | Leu-Leu-OBzl. Alternative Names: L-Leucyl-L-leucine phenylmethyl ester; L-Leu-Leu-Obzl; Benzyl L-leucyl-L-leucinate. CAS No. 77167-53-4. Molecular formula: C19H30N2O3. Mole weight: 334.45. | |
| Leu-Leu-OH | Leu-Leu-OH. Alternative Names: L-Leucyl-L-leucine; Leu Leu OH. Grades: ≥ 96% (HPLC). CAS No. 3303-31-9. Molecular formula: C12H24N2O3. Mole weight: 244.33. | |
| Leu-Leu-OMe HCl | Leu-Leu-OMe has immunosuppressive activity. Alternative Names: LLME; LLOMe; L-Leucyl-L-Leucine methyl ester hydrochloride. Grades: ≥ 98%. CAS No. 6491-83-4. Molecular formula: C13H26N2O3·HCl. Mole weight: 294.82. | |
| Leu-Leu-Val-Phe-OH | Leu-Leu-Val-Phe-OH. Alternative Names: (Leu16)-Amyloid β-Protein (16-19); L-leucyl-L-leucyl-L-valyl-L-phenylalanine. Grades: ≥ 99%. CAS No. 24205-68-3. Molecular formula: C26H42N4O5. Mole weight: 490.64. | |
| Leu-Nle-NH2 HCl | Leu-Nle-NH2 HCl is an analog of Leupeptin. Alternative Names: L-leucyl-L-norleucinamide hydrochloride. Grades: ≥ 95%. CAS No. 68759-98-8. Molecular formula: C12H25N3O2·HCl. Mole weight: 279.81. | |
| Leupeptin | Leupeptin, a naturally occurring protease inhibitor, has potential applications in cosmetics due to its anti-inflammatory properties and ability to inhibit various proteases. It can be used in skincare products to help reduce inflammation and provide soothing effects to the skin. Additionally, Leupeptin's ability to inhibit proteases could contribute to the prevention of skin degradation and promote skin health by preserving the structural integrity of proteins in the skin matrix. Therefore, Leupeptin's applications in cosmetics may include anti-inflammatory and skin-protective effects, making it a valuable ingredient for products aimed at reducing skin irritation and promoting a healthy skin environment. It is a reversible, competitive inhibitor that targets serine and cysteine proteases, including trypsin, plasmin, calpain, papain, and cathepsins B, H, and L. Alternative Names: Ac-Leu-Leu-Arg-CHO; Acetyl Tripeptide; L-Leucinamide, N-acetyl-L-leucyl-N-[4-[(aminoiminomethyl)amino]-1-formylbutyl]-, (S)-; N-Acetyl-L-leucyl-N-[(1S)-4-[(aminoiminomethyl)amino]-1-formylbutyl]-L-leucinamide; Acetyl-L-leucyl-L-leucyl-L-argininal; N-Acetyl-L-leucyl-L-leucyl-L-argininal; Ac-Leu-Leu-Arg-al; Ac-LLR-al. Grades: ≥95%. CAS No. 55123-66-5. Molecular formula: C20H38N6O4. Mole weight: 426.55. | |
| Leu-Pro-Ala-NH2 | Leu-Pro-Ala-NH2 is a simple tripeptide with a free amine group at the C-terminus. It consists of leucine (Leu), proline (Pro), and alanine (Ala) residues. The -NH2 at the C-terminus indicates that the peptide has a free amine group, which can be utilized for further reactions or modifications. This peptide sequence is used to study the effects of leucine, proline, and alanine in peptide structures and interactions, with potential applications in understanding peptide conformations or biological activities. Alternative Names: LPA; H-Leu-Pro-Ala-NH2; (S)-1-(L-Leucyl)-N-((S)-1-amino-1-oxopropan-2-yl)pyrrolidine-2-carboxamide. Grades: ≥95%. Molecular formula: C14H26N4O3. Mole weight: 298.39. | |
| Leu-Ser-Phe-OH | Leu-Ser-Phe-OH. Alternative Names: L-Leucyl-L-seryl-L-phenylalanine. CAS No. 40290-77-5. Molecular formula: C18H27N3O5. Mole weight: 365.43. | |
| Leu-Trp-OMe HCl | Leu-Trp-OMe HCl. Alternative Names: (L)-Leu-(L)-TrpOMe HCl; L-leucyl-L-tryptophan methyl ester hydrochloride. Grades: ≥ 97%. CAS No. 143413-36-9. Molecular formula: C18H25N3O3·HCl. Mole weight: 367.88. | |
| Leu-Val-OH | Leu-Val-OH. Alternative Names: L-Leucyl-L-valine; Leu Val OH. Grades: ≥ 99% (HPLC). CAS No. 13588-95-9. Molecular formula: C11H22N2O3. Mole weight: 230.31. | |
| Levetiracetam EP Impurity G | An impurity of Levetiracetam, a medication indicated for the treatment of epilepsy. Alternative Names: L-α-Aminobutyramide; H-Abu(2)-NH2; H-Abu(α)-NH2; (S)-2-Aminobutanamide. CAS No. 7324-11-0. Molecular formula: C4H10N2O. Mole weight: 102.14. | |
| Levetiracetam Related Compound B | An impurity of Levetiracetam, a medication indicated for the treatment of epilepsy. Alternative Names: L-2-Aminobutanamide HCl; S-2-Aminobutanamide HCl; (S)-2-Aminobutanamide Monohydrochloride. Grades: ≥ 98% (HPLC). CAS No. 7682-20-4. Molecular formula: C4H11ClN2O. Mole weight: 138.6. | |
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