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Has neuroprotective properties improving axonal wiring. Has been used to treat stroke patients to restore neural function. Group: Biochemicals. Alternative Names: 1,9-Dihydro-9- β-D-ribofuranosyl-6H-purin-6-one-13C2,15N; 9- β -D-Ribofuranosyl hypoxanthine-13C2, 15N; Hypoxanthine 9- β-D-ribofuranoside-13C2,15N; Hypoxanthine Ribonucleoside-13C2,15N; Hypoxanthine Riboside-13C2,15N. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences.
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(-)-Isocorypalmine
(-)-Isocorypalmine. Group: Biochemicals. Alternative Names: (13aS)-5,8,13,13a-Tetrahydro-3,9,10-trimethoxy-6H-dibenzo[a,g]quinolizin-2-ol; Tetrahydro-columbamine; 2-O-Desmethyl-L-THP. Grades: Highly Purified. CAS No. 483-34-1. Pack Sizes: 250mg. Molecular Formula: C20H23NO4. US Biological Life Sciences.
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(±)-Jasmonic acid
(±)-Jasmonic acid. Group: Biochemicals. Alternative Names: (±) -1a, 2b-3-Oxo-2- (cis-2-pentenyl) cyclopentaneacetic acid. Grades: Highly Purified. CAS No. 77026-92-7. Pack Sizes: 50mg, 100mg, 250mg, 500mg, 1g. Molecular Formula: C12H18O3. US Biological Life Sciences.
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(-)-Jasmonic Acid Methyl Ester
(-)-Jasmonic Acid Methyl Ester can be used in biological study where it can exert concn.-dependent effect on SE1 and upregulated SE1 expression in both young and mature leaves of Gynostemma pentaphyllum, with greater upregulation in young leaves than in mature leaves. Group: Biochemicals. Grades: Highly Purified. CAS No. 1211-29-6. Pack Sizes: 50mg, 100mg. Molecular Formula: C13H20O3, Molecular Weight: 224.3. US Biological Life Sciences.
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(+)-JQ-1
BET bromodomain inhibitor JQ1 activates HIV latency through antagonizing Brd4 inhibition of Tat-transactivation. Group: Biochemicals. Alternative Names: (6S)-4-(4-Chlorophenyl)-2,3,9-trimethyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine-6-acetic Acid 1,1-Dimethylethyl Ester; (+)-JQ1; (S)-(+)-Tert-butyl 2-(4-(4-chlorophenyl)-2,3,9-trimethyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepin-6-yl)acetate. Grades: Highly Purified. CAS No. 1268524-70-4. Pack Sizes: 5mg, 10mg, 25mg, 50mg, 100mg. Molecular Formula: C??H??ClN?O?S, Molecular Weight: 456.99. US Biological Life Sciences.
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(+)-Kobusin
(+)-Kobusin is a lignan isolated from the bark of Magnolia kobus and inhibits lipopolysaccharide (LPS)-stimulated nitric oxide (NO) production. Group: Biochemicals. Grades: Highly Purified. CAS No. 36150-23-9. Pack Sizes: 1mg, 2.5mg. Molecular Formula: C21H22O6, Molecular Weight: 370.4. US Biological Life Sciences.
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(L)-2-Bromo-3-phenylpropionic Acid
(L)-2-Bromo-3-phenylpropionic Acid. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 2.5g. US Biological Life Sciences.
(+)-Lactacystin Allyl Ester (Lactacystin Allyl Ester). Group: Biochemicals. Alternative Names: Lactacystin Allyl Ester. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences.
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(+)-Lactacystin (Lactacystin)
A selective and potent inhibitor of proteasome-mediated degradation of ubiquitin-tagged proteins. A Streptomyces metabolite that acts as a highly specific inhibitor of the 20S proteasome (MCP: multicatalytic proteinase complex). Group: Biochemicals. Alternative Names: Lactacystin. Grades: Highly Purified. Pack Sizes: 250ug. US Biological Life Sciences.
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(+)-L-Alliin
(+)-L-Alliin. Group: Biochemicals. Alternative Names: 3- (Allylsulfinyl) alanine; (S)-L-3-(Allylsulfinyl)-alanine; (S)-3-(2-propenylsulfinyl)-,L-Alanine; 3-[(S)-2-Propenylsulfinyl]-L-alanine; (+)-L-Alliin; Alliin; S-Allyl-L-cysteine-(+)-sulfoxide. Grades: Highly Purified. CAS No. 556-27-4. Pack Sizes: 10mg. Molecular Formula: C6H11NO3S, Molecular Weight: 177.22. US Biological Life Sciences.
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(±)-Lauroylcarnitine chloride
(±)-Lauroylcarnitine chloride. Group: Biochemicals. Grades: Purified. CAS No. 7023-3-2. Pack Sizes: 50mg. US Biological Life Sciences.
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(-)-Lentiginosine
A selective and powerful inhibitor of amyloglucosidases. Group: Biochemicals. Grades: Highly Purified. CAS No. 125279-72-3. Pack Sizes: 500ug, 1mg, 2mg. US Biological Life Sciences.
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(-)-Limonene
(-)-Limonene. Group: Biochemicals. Alternative Names: (S) -1-Methyl-4- (1-methylethenyl) cyclohexene; (S)-(-)-p-Mentha-1,8-diene; (-)-(4S)-Limonene; (-)-(S)-Limonene; (-)-Limonene; (-)-α-Limonene; (4S) -1-Methyl-4- (1-methylethenyl) cyclohexene; (4S)-Limonene; (S)-(-)-Limonene; (S)-4-Isopropenyl-1-methyl-1-cyclohexene; (S)-Limonene; l-Carvene; l-Limonene; β-Limonene. Grades: Highly Purified. CAS No. 5989-54-8. Pack Sizes: 5g. Molecular Formula: C10H16, Molecular Weight: 136.229999999999. US Biological Life Sciences.
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(+)-Limonene
(+)-Limonene is used in the synthesis of Lavandulol (L195300), a compound in the cosmetics industry. In addition its used in the epoxidation of olefins. Group: Biochemicals. Alternative Names: (+)-p-Mentha-1,8-diene; (+)-α-Limonene; (4R)-(+)-Limonene; (4R) -1-Methyl-4- (1-methylethenyl) cyclohexene; (4R)-Limonene; (R)-(+)-Limonene; (R)-(+)-p-Mentha-1,8-diene; (R)-4-Isopropenyl-1-methyl-1-cyclohexene; (R)-Limonene; (R)-p-Mentha-1,8-diene; 1-Methyl-4-prop-1-en-2-yl-cyclohexene; Bio Clear; Biogenic SE 374; Carvene; Clearene; D-(+)-Limonene; D-Limonene; EC 7; Fruits Dry; Glidesafe; Glidsafe; Histo-Clear; HistoSolve X; Limonene, (+)-; Master Clear; NK 1100; Refchole; Safsolv; Woody River 8; d-(+)-Limonene; d-Limonene; (R) -1-Methyl-4- (1-methylethenyl) cyclohexene; (R)-(+)-p-Mentha-1,8-diene; (+)-(4R)-Limonene; (+)-(R)-Limonene; (+)-Dipentene. Grades: Highly Purified. CAS No. 5989-27-5. Pack Sizes: 5g. US Biological Life Sciences.
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(+)-Limonene-d5 (Major)
(-)-Limonene (L461745) is present in blood oranges which show inhibition of angiogenesis in human colon cancer cells. Extracted from the oils of Mentha spicata it shows antimicrobial activity. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 2.5mg, 5mg. Molecular Formula: C10H11D5, Molecular Weight: 141.26. US Biological Life Sciences.
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(+)-Limonene Oxide, mixture of cis and trans
(+)-Limonene oxide (mixture of cis and trans) undergoes biocatalytic resolution in the presence of epoxide hydrolase to form enantiomerically pure cis- and trans-limonene oxides. Used in citrus and minty flavours: at 0.3-0.5ppm in beverages and dairy products, and up to 5ppm in sauces.Note: the epoxide can be lost in alcoholic and aqueous solutions, in acidic conditions.fresh clean citrus minty spearmint herbal. Group: Biochemicals. Alternative Names: D-8-p-menthene-1,2-epoxide; 6-methyl-3-prop-1-en-2-yl-7-oxabicyclo[4. 1. 0]heptane; limonene 1,2-epoxide; limonene 1,2-oxide; limonene epoxide. Grades: Highly Purified. CAS No. 1195-92-2. Pack Sizes: 25g, 50g, 100g. Molecular Formula: C10H16O, Molecular Weight: 152.23. US Biological Life Sciences.
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(+/-)-Lisofylline
(+/-)-Lisofylline. Group: Biochemicals. Alternative Names: 3,7-Dihydro-1-(5-hydroxyhexyl)-3,7-dimethyl-1H-purine-2,6-dione. Grades: Highly Purified. CAS No. 6493-6-7. Pack Sizes: 10mg, 25mg, 50mg, 100mg, 250mg. Molecular Formula: C13H20N4O3. US Biological Life Sciences.
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(-)-Lobeline hydrochloride
(-)-Lobeline hydrochloride. Group: Biochemicals. Grades: Purified. CAS No. 134-63-4. Pack Sizes: 100mg. US Biological Life Sciences.
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(L)-Suberyl carnitine
(L)-Suberyl carnitine. Group: Biochemicals. Alternative Names: (R)-3-Carboxy-2-[(7-carboxy-1-oxoheptyl)oxy]-N,N,N-trimethyl-1-propanaminium inner salt; (R)-Suberyl carnitine. Grades: Highly Purified. CAS No. 102636-81-7. Pack Sizes: 1g. Molecular Formula: C15H27NO6. US Biological Life Sciences.
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(L)-tert-Leucinol
(L)-tert-Leucinol. Group: Biochemicals. Grades: Highly Purified. CAS No. 112245-13-3. Pack Sizes: 250mg, 500mg, 1g, 2g, 5g. Molecular Formula: (CH3)3CCH(NH2)CH2OH. US Biological Life Sciences.
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(-)-Lupinine
(-)-Lupinine. Group: Biochemicals. Alternative Names: (R)-1-(Octahydro-quinolizin-1-yl)-methanol. Grades: Highly Purified. CAS No. 486-70-4. Pack Sizes: 100mg, 250mg, 500mg, 1g, 2g. Molecular Formula: C10H19NO. US Biological Life Sciences.
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(+)-Lycopsamine
(+)-Lycopsamine. Group: Biochemicals. Alternative Names: (2S,3S)-2,3-Dihydroxy-2-(1-methylethyl)butanoic Acid [(1R,7aR)-2,3,5,7a-Tetrahydro-1-hydroxy-1H-pyrrolizin-7-yl]methyl Ester; [1R-[1α, 7(2S*, 3S*), 7a β]]-2,3-dihydroxy-2-(1-methylethyl)butanoic Acid (2,3,5,7a-Tetrahydro-1-hydroxy-1H-pyrrolizin-7-yl)methyl Ester; Lycopsamine; Retronecine 9-((-)-viridiflorate). Grades: Highly Purified. CAS No. 10285-07-1. Pack Sizes: 1mg. Molecular Formula: C15H25NO5, Molecular Weight: 299.36. US Biological Life Sciences.
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(+)-Lycopsamine N-Oxide
(+)-Lycopsamine N-Oxide. Group: Biochemicals. Alternative Names: (2S)-2-Hydroxy-2-[(1S)-1-hydroxyethyl]-3-methylbutanoic Acid [(1R,7aR)-2,3,5,7a-tetrahydro-1-hydroxy-4-oxido-1H-pyrrolizin-7-yl]methyl Ester; [1R-[1α, 7(2S*, 3S*), 7a β]]-2,3-dihydroxy-2-(1-methylethyl)butanoic Acid (2,3,5,7a-tetrahydro-1-hydroxy-1H-pyrrolizin-7-yl)methyl Ester N-Oxide. Grades: Highly Purified. CAS No. 95462-15-0. Pack Sizes: 500ug. Molecular Formula: C15H25NO6, Molecular Weight: 315.36. US Biological Life Sciences.
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(Mercaptomethyl) diphenylphosphine Oxide
Used for production of peptide thioester. Group: Biochemicals. Alternative Names: Ethanethioic Acid S-[ (Diphenylphosphinyl) methyl] Ester. Grades: Highly Purified. CAS No. 324753-14-2. Pack Sizes: 50mg. US Biological Life Sciences.
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(Methanesulfonyl) acetonitrile
(Methanesulfonyl) acetonitrile. Group: Biochemicals. Grades: Highly Purified. CAS No. 2274-42-2. Pack Sizes: 10g, 25g, 50g, 100g. Molecular Formula: C3H5NO2S. US Biological Life Sciences.
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(Methanesulfonyl-phenethyl-amino)-Acetic Acid
(Methanesulfonyl-phenethyl-amino)-Acetic Acid. Group: Biochemicals. Grades: Reagent Grade. CAS No. 35839-52-2. Pack Sizes: 100mg, 250mg, 1g. US Biological Life Sciences.
(Methoxycarbonyl methyl ) triphenylphosphonium bromide. Group: Biochemicals. Grades: Highly Purified. CAS No. 1779-58-4. Pack Sizes: 10g, 25g, 50g, 100g, 250g. US Biological Life Sciences.
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(Methoxymethyl) triphenylphosphonium chloride
(Methoxymethyl) triphenylphosphonium chloride. Group: Biochemicals. Alternative Names: (methoxymethyl) triphenylphosphonium chloride. Grades: Highly Purified. CAS No. 4009-98-7. Pack Sizes: 50g, 100g, 250g, 500g, 1kg. Molecular Formula: C20H20ClOP. US Biological Life Sciences.
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(+/-)-Methyl Jasmonate
(+/-)-Methyl Jasmonate is a compound that induces the synthesis of proteinase inhibitors in plant leaves. Group: Biochemicals. Grades: Highly Purified. CAS No. 39924-52-2. Pack Sizes: 1g, 2.5g. Molecular Formula: C13H20O3, Molecular Weight: 224.3. US Biological Life Sciences.
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(Methylpyrazin-2-yl)methyl amine
(Methylpyrazin-2-yl)methyl amine. Group: Biochemicals. Alternative Names: N-Methyl-1-(2-pyrazinyl)methanamine. Grades: Highly Purified. CAS No. 120739-79-9. Pack Sizes: 100mg, 250mg, 500mg, 1g. US Biological Life Sciences.
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(Methylpyrazin-2-yl)methyl amine ≥95% (NMR)
(Methylpyrazin-2-yl)methyl amine ≥95% (NMR). Group: Biochemicals. Grades: Reagent Grade. Pack Sizes: 100mg, 250mg, 1g. US Biological Life Sciences.
A heterobifunctional crosslinking reagent. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences.
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(±)-N-(3-Hydroxy-2-methoxypropyl)-hexadecanamide
Used in the preparation of bioactive phospholipid analogs. Group: Biochemicals. Alternative Names: N-(3-Hydroxy-2-methoxypropyl)-hexadecanamide. Grades: Highly Purified. CAS No. 112988-96-2. Pack Sizes: 50mg. US Biological Life Sciences.
(+)-N-Acetyl 3,4,4a,5,6,10b-hexahydro-2H-naphtho[1,2-b][1,4]oxazine-9-ol triisopropylsilyl ether. Group: Biochemicals. Alternative Names: N-Acetyl (+)-3,4,4a,5,6,10b-hexahydro-2H-naphtho[1,2-b][1,4]oxazine-9-ol TIPS ether. Grades: Highly Purified. CAS No. 1034706-81-4. Pack Sizes: 1mg, 2mg, 5mg, 10mg, 25mg. Molecular Formula: C23H37NO3Si. US Biological Life Sciences.
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(+)-N-Allyl normetazocine hydrochloride
(+)-N-Allyl normetazocine hydrochloride. Group: Biochemicals. Alternative Names: (2S,6S,11S)-1,2,3,4,5,6-Hexahydro-6,11-dimethyl-3-(2-propen-1-yl)-2,6-methano-3-benzazocin-8-ol hydrochloride; D-NANM; (+)-N-Allyl-N-normetazocine hydrochloride. Grades: Highly Purified. CAS No. 133005-41-1. Pack Sizes: 1mg, 2mg, 5mg, 10mg, 25mg. Molecular Formula: C17H24ClNO. US Biological Life Sciences.
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(+/-)-N-(Benzylidene)alanine Ethyl Ester
(+/-)-N-(Benzylidene)alanine Ethyl Ester. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 1g. US Biological Life Sciences.
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(-)-N-Desmethyltramadol
A optically active metabolite of Tramadol. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences.
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(-)-Nebivolol
(-)-Nebivolol. Group: Biochemicals. Alternative Names: (a-S, a'S, 2R, 2'S)-a, a'-[Iminobis (methylene)]bis[6-fluoro-3, 4-dihydro-2H-1-benzopyran-2-methanol]; [2S-[2R*[R*[R* (S*)]]]]-a, a'-[Iminobis (methylene)]bis[6-fluoro-3, 4-dihydro-2H-1-benzopyran-2-methanol. Grades: Highly Purified. CAS No. 118457-16-2. Pack Sizes: 1mg, 2mg, 5mg, 10mg, 25mg. Molecular Formula: C22H25F2NO4. US Biological Life Sciences.
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(-)-Nebivolol-d4 Hydrochloride
Labeled (-)-Nebivolol. A β1-Adrenergic blocker. Used as an antihypertensive. Group: Biochemicals. Alternative Names: (α S, α S, 2R, 2S)-α , α -[Iminobis (methylene)]bis[6-fluoro-3, 4-dihydro-2H-1-benzopyran-2-methanol]-d4 Hydrochloride; [2S-[2R*[R*[R* (S*)]]]]-α , α '-[Iminobis (methylene)]bis[6-fluoro-3, 4-dihydro-2H-1-benzopyran-2-methanol-d4 Hydrochloride. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences.
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(+)-Nebivolol-d4 Hydrochloride
Labeled (+)-Nebivolol. A β1-Adrenergic blocker. Used as an antihypertensive. Group: Biochemicals. Alternative Names: (α R, α R, 2R, 2S)-α , α -[Iminobis (methylene)]bis[6-fluoro-3, 4-dihydro-2H-1-benzopyran-2-methanol]-d4; [2R-[2R*[R*[R* (S*)]]]]-α , α '-[Iminobis (methylene)]bis[6-fluoro-3, 4-dihydro-2H-1-benzopyran-2-methanol-d4 Hydrochloride; (S,R,R,R)-Nebivolol-d4 Hydrochloride; Dexnebivolol-d4 Hydrochloride; R 67138-d4; d-Nebivolol-d4 Hydrochloride. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences.
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(+)-Nerolidol
(+)-Nerolidol. Group: Biochemicals. Grades: Highly Purified. CAS No. 40716-66-3. Pack Sizes: 25g, 50g, 100g, 250g, 500g. Molecular Formula: C15H26O. US Biological Life Sciences.
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(+)-Nicotine
(+)-Nicotine. Group: Biochemicals. Alternative Names: R-(+)-Nicotine, [+]-1-methyl-2-[3-pyridyl]pyrrolidine, free base. Grades: Highly Purified. CAS No. 25162-00-9. Pack Sizes: 5mg, 10mg, 25mg, 50mg, 100mg. Molecular Formula: C10H14N2. US Biological Life Sciences.
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(+)-Nicotine di-p-toluoyl-D-tartrate salt
(+)-Nicotine di-p-toluoyl-D-tartrate salt. Group: Biochemicals. Alternative Names: R (+) -3- (1-Methyl-2-pyrrolidinyl) pyridinium (+)-di-p-toluoyl tartrate. Grades: Highly Purified. CAS No. 68935-27-3. Pack Sizes: 50mg, 100mg, 250mg, 500mg, 1g. Molecular Formula: C10H14N2·C20H18O8. US Biological Life Sciences.
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(+)-Nicotine Di-p-Toluoyl-D-Tartrate Salt (R (+) -3- (1-Methyl-2-pyrrolidinyl) pyridinium (+)-di-p-toluoyl tartrate)
(+)-Nicotine di-p-toluoyl-D-tartrate is a precursor of the less active enantiomer of naturally occurring (-)-nicotine. It is a potent neurotoxin. Group: Biochemicals. Alternative Names: R (+) -3- (1-Methyl-2-pyrrolidinyl) pyridinium (+)-di-p-toluoyl tartrate. Grades: Highly Purified. Pack Sizes: 100mg. US Biological Life Sciences.
(N-tert-Butoxycarbonyl-N-[(1'R)-hydroxy-1-phenyl)ethyl])-4-nitrophenylethylamine. Group: Biochemicals. Alternative Names: [ (2R) -2-Hydroxy-2-phenylethyl][2- (4-nitrophenyl) ethyl]carbamic acid 1,1-dimethylethyl ester. Grades: Highly Purified. CAS No. 223673-35-6. Pack Sizes: 10mg, 25mg, 50mg, 100mg, 250mg. Molecular Formula: C21H26N2O5. US Biological Life Sciences.
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(o-Aminophenyl)-hydroquinone
A reactant used in the preparation of carbazole derivatives. Group: Biochemicals. Alternative Names: 2'-Amino-[1,1'-biphenyl]-2,5-diol. Grades: Highly Purified. CAS No. 91569-08-3. Pack Sizes: 25mg. US Biological Life Sciences.
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ω-1-Hydroxy losartan
ω-1-Hydroxy losartan. Group: Biochemicals. Alternative Names: 4-Chloro-5-(hydroxymethyl)-a-methyl-1-[[2'-(2H-tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-1H-imidazole-2-propanol. Grades: Highly Purified. CAS No. 141675-57-2. Pack Sizes: 1mg, 2mg, 5mg, 10mg, 25mg. Molecular Formula: C22H23ClN6O2. US Biological Life Sciences.
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ω-3-Hydroxy losartan
ω-3-Hydroxy losartan. Group: Biochemicals. Alternative Names: 4-Chloro-a2-propyl-1-[[2'-(2H-tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-1H-imidazole-2,5-dimethanol. Grades: Highly Purified. CAS No. 141675-59-4. Pack Sizes: 1mg, 2mg, 5mg, 10mg, 25mg. Molecular Formula: C22H23ClN6O2. US Biological Life Sciences.
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ω-Hydroxy Norfentanyl
A metabolite of Fentanyl. Group: Biochemicals. Alternative Names: 3-Hydroxy-N-phenyl-N-4-piperidinylpropanamide. Grades: Highly Purified. CAS No. 83708-10-5. Pack Sizes: 2.5mg. US Biological Life Sciences.
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(o-Nitrophenyl)-p-benzoquinone
A reactant used in the preparation of monoaryl-p-benzoquinones. Group: Biochemicals. Alternative Names: 2-(2-Nitrophenyl)-2,5-cyclohexadiene-1,4-dione. Grades: Highly Purified. CAS No. 105946-79-0. Pack Sizes: 50mg. US Biological Life Sciences.
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(+)-O,O'-Di-p-toluoyl-D-tartaric acid
(+)-O,O'-Di-p-toluoyl-D-tartaric acid. Group: Biochemicals. Alternative Names: O,O'-Di-p-toluoyl-dg-tartaric acid; (2S,3S)-(+)-Di-O-4-toluoyltartaric acid; 2,3-Bis-(4-methyl-benzoyloxy)-succinic acid. Grades: Highly Purified. CAS No. 32634-68-7. Pack Sizes: 500g, 1kg, 2kg, 5kg, 10kg. Molecular Formula: C20H18O8. US Biological Life Sciences.
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(+)-O,O'-Di-p-toluoyl-D-tartaric acid 99+% (HPLC)
(+)-O,O'-Di-p-toluoyl-D-tartaric acid 99+% (HPLC). Group: Biochemicals. Grades: Reagent Grade. Pack Sizes: 25g, 100g, 250g, 1Kg, 2.5Kg. US Biological Life Sciences.
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(-)-O,O'-Di-p-toluoyl-L-tartaric acid
Appearance: White to off-white crystalline powder. Group: Biochemicals. Alternative Names: O,O'-Di-p-toluoyl-lg-tartaric acid; (2R,3R)-(-)-Di-O-4-toluoyltartaric acid; (R (R*, R*) ) -2, 3-Bis-[ (4-methylbenzoyl) oxy]succinic acid. Grades: Highly Purified. CAS No. 32634-66-5. Pack Sizes: 250g, 500g, 1kg, 2kg, 5kg. US Biological Life Sciences.