Colchicine Imp. E

Colchicine Imp. E (EP): N-[(7S,12aRa)-3-hydroxy-1,2,10-trimethoxy-9-oxo-5,6,7,9-tetrahydrobenzo[a]heptalen-7-yl]acetamide (COA w/o assay) 3-demethyl-Colchicine.

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