NSC 3341

NSC 33411

colchiceine

O10-Demethylcolchicine

(S)-7-Acetylamino-10-hydroxy-1,2,3-trimethoxy-6,7-dihydrobenzo[a]heptalen-9(5H)-one

N-[(7S)-5,6,7,9-Tetrahydro-10-hydroxy-1,2,3,-trimethoxy-9-oxobenzo[a]heptalen-7-yl]acetamide