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Paclitaxel EP Impurity B (Cephalomannine)

Impurity

CAS Number

71610-00-9

Molecular Formula

C45H53NO14

Product format

Neat

Molecular Weight

831.91

Storage

+5°C

Shipping

Room Temperature

API Family

Paclitaxel

Synonyms

Paclitaxel USP Related Compound A, Paclitaxel USP RC A, Paclitaxel Related Compound A, Paclitaxel Imp B (EP), N-Debenzoyl-N-tigloylpaclitaxel, 7, 11-Methano-1H-cyclodeca[3, 4]benz[1, 2-b]oxete, benzenepropanoic acid deriv., Cephalomannine, NSC 318735, Taxol B, Benzenepropanoic acid, alpha-hydroxy-beta-[[(2E)-2-methyl-1-oxo-2-buten-1-yl]amino]-, (2aR, 4S, 4aS, 6R, 9S, 11S, 12S, 12aR, 12bS)-6, 12b-bis(acetyloxy)-12-(benzoyloxy)-2a, 3, 4, 4a, 5, 6, 9, 10, 11, 12, 12a, 12b-dodecahydro-4, 11-dihydroxy-4a, 8, 13, 13-tetramethyl-5-oxo-7, 11-methano-1H-cyclodeca[3, 4]benz[1, 2-b]oxet-9-yl ester, (alphaR, betaS)-, Benzenepropanoic acid, alpha-hydroxy-beta-[(2-methyl-1-oxo-2-butenyl)amino]-, 6, 12b-bis(acetyloxy)-12-(benzoyloxy)-2a, 3, 4, 4a, 5, 6, 9, 10, 11, 12, 12a, 12b-dodecahydro-4, 11-dihydroxy-4a, 8, 13, 13-tetramethyl-5-oxo-7, 11-methano-1H-cyclodeca[3, 4]benz[1, 2-b]oxet-9-yl ester, [2aR-[2aalpha, 4beta, 4abeta, 6beta, 9alpha[alphaR*, betaS*(E)], 11alpha, 12alpha, 12aalpha, 12balpha]]-, Benzenepropanoic acid, alpha-hydroxy-beta-[[(2E)-2-methyl-1-oxo-2-butenyl]amino]-, (2aR, 4S, 4aS, 6R, 9S, 11S, 12S, 12aR, 12bS)-6, 12b-bis(acetyloxy)-12-(benzoyloxy)-2a, 3, 4, 4a, 5, 6, 9, 10, 11, 12, 12a, 12b-dodecahydro-4, 11-dihydroxy-4a, 8, 13, 13-tetramethyl-5-oxo-7, 11-methano-1H-cyclodeca[3, 4]benz[1, 2-b]oxet-9-yl ester, (alphaR and betaS)- (9CI)

Smiles

C\C=C(/C)\C(=O)N[C@H]([C@@H](O)C(=O)O[C@H]1C[C@@]2(O)[C@@H](OC(=O)c3ccccc3)[C@@H]4[C@@]5(CO[C@@H]5C[C@H](O)[C@@]4(C)C(=O)[C@H](OC(=O)C)C(=C1C)C2(C)C)OC(=O)C)c6ccccc6

Iupac Name

(aR,ßS)-a-Hydroxy-ß-[[(2E)-2-methyl-1-oxo-2-buten-1-yl]amino]benzenepropanoic acid (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-6,12b-bis(acetyloxy)-12-(benzoyloxy)-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-4,11-dihydroxy-4a,8,13,13-tetramethyl-5-oxo-7,11-methano-1H-cyclodeca[3,4]benz[1,2-b]oxet-9-yl ester


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