Epothilone B is a 16-membered macrolide that mimics the biological effects of taxol. The epothilones are a class of potential cancer drugs.. Reference standards of Epothilone B API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below
Epothilone B
Catalogue No.:PA 05 72000
CAS :
Molecular Formula : C27H41NO6S
Molecular Weight : 507.68
Epothilone D (synthetic)
Catalogue No.:PA 05 0721000
Molecular Formula : C27H41NO5S
Molecular Weight : 491.69
4-[(1E,3S,5Z,8R/S,10S)-3,11-Bis-{[tert-butyl(dimethyl)silyl]oxy}-2,6,10-trimethyl-undeca-1,5-dienyl]-2-methyl-1,3-thiazole
Catalogue No.:PA 05 0721001
Molecular Formula : C30H57NO2SSi2
Molecular Weight : 552.02
(4S,7R,8S,9S,13Z,16S)-4,8-Bis-{[tert-butyl(dimethyl)silyl]oxy}-5,5,7,9,13-pentamethyl-16-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]oxocyclohexadec-13-ene-2,6-dione
Catalogue No.:PA 05 0721002
Molecular Formula : C39H69NO5SSi2
Molecular Weight : 720.21
(3S,6R,7S,12Z,15S,16E)-3,7-Bis-{[tert-butyl(dimethyl)silyl]oxy}-15-hydroxy-4,4,6,8,12,16-hexamethyl-17-(2-methyl-1,3-thiazol-4-yl)-5-oxoheptadeca-12,16-dienoic Acid
Catalogue No.:PA 05 0721003
Molecular Formula : C39H71NO6SSi2
Molecular Weight : 738.23
(3S,6R,7S,8S,12Z,15S,16E)-1,3,7,15-Tetrakis-{[tert-butyl(dimethyl)silyl]oxy}-4,4,6,8,12,16-hexamethyl-17-(2-methyl-1,3-thiazol-4-yl)heptadeca-12,16-dien-5-one
Catalogue No.:PA 05 0721004
Molecular Formula : C51H101NO5SSi4
Molecular Weight : 952.77
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