Paclitaxel EP Impurity D

Chemical Name: 4,10β-bis(acetyloxy)-1,7α-dihydroxy-13α-[[(2R,3S)-2-hydroxy-3-[[(2E)-2-methylbut-2-enoyl]amino]-3-phenylpropanoyl]oxy]-9-oxo-5β,20-epoxytax-11-en-2α-yl benzoate (as per EP) ; (2aR,4R,4aS,6R,9S,11S,12S,12aR,12bS)-12-(Benzoyloxy)-4,11-dihydroxy-9-({(2R,3S)-2-hydroxy-3-[(E)-2-methylbut-2-enamido]-3-phenylpropanoyl}oxy)-4a,8,13,13-tetramethyl-5-oxo-3,4,4a,5,6,9,10,11,12,12a-decahydro-1H-7,11-methanocyclodeca[3,4]benzo[1,2-b]oxete-6,12b(2aH)-diyl diacetate (as per USP)

Synonym: N-debenzoyl-N-tigloyl-7-epi-paclitaxel , 7-epi-cephalomannine (EP) ; 7-Epicephalomannine (USP)