Baccatin III and its Impurities
Baccatin III is a precursor to paclitaxel which is an anticancer drug. It is isolated from Pacific yew tree. Reference standards of Baccatin III API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


(2aR,4S,4aS,6R,7S,8R,9S,11S,12S,12aR,12bS)-12-(Benzoyloxy)-4,9,11-trihydroxy-4a,8,13,13-tetramethyl-5-oxododecahydro-1H-7,11-methanocyclodeca[3,4]benzo[1,2-b]oxete-6,12b(2aH)-diyl diacetate
(2aR,4S,4aS,6R,7S,8R,9S,11S,12S,12aR,12bS)-12-(Benzoyloxy)-4,9,11-trihydroxy-4a,8,13,13-tetramethyl-5-oxododecahydro-1H-7,11-methanocyclodeca[3,4]benzo[1,2-b]oxete-6,12b(2aH)-diyl diacetate
Catalogue No.:PA 02 0011002
CAS :
173044-44-5
Molecular Formula : C31H40O11
Molecular Weight : 588.65