26279-89-0 Acetamide, 2-chloro-N-(5,6,7,9-tetrahydro-1,2,3,10-tetramethoxy-9-oxobenzo[a]heptalen-7-yl) Acetamide, 2-chloro-N-(5,6,7,9-tetrahydro-1,2,3,10-tetramethoxy-9-oxobenzo[a]heptalen-7-yl)-, (S)- Chlorocolchicine Colchicine, 17-chloro- NSC164850