Colchicine EP Impurity E

(2S-trans)-Methyl 7-Chloro-6,7,8-trideoxy-6-[[[(2S,4R)-1-methyl-4-propyl-2-pyrrolidinyl]carbonyl]amino]-1-thio-L-threo-α-D-galactooctopyranoside Hydrochloride|7(S)-Chloro-7-deoxylincomycin;Methyl 7-chloro-6,7,8-trideoxy-6-[[[(2S,4R)-1-methyl-4-propylpyrrolidin-2-yl]carbonyl]amino]-1-thio-L-threo-α-D-galacto-octopyranoside Hydrochloride|Clindamycin HCl|N-[(10S)-5-hydroxy-3,4,14-trimethoxy-13- oxo,4,6,11,14- hexaen-10-yl]acetamide|N-[(7S,12aRa)-3-Hydroxy-1,2,10-trimethoxy-9-oxo-5,6,7,9-tetrahydrobenzo[a]heptalen-7-yl]acetamide ;