1,2,3,10-Tetramethoxybenzo(a)heptalen-9(5H)-one 14511-67-2 5,6-Dehydro-7-deacetamidocolchicine BRN 2482144 Benzo(a)heptalen-9(5H)-one, 1,2,3,10-tetramethoxy- (9CI) Benzo(alpha)heptalen-9(5H)-one, 1,2,3,10-tetramethoxy- (9CI) COLCHICINE, 5,6-DIDEHYDRODEACETAMIDO- Colchicine, deacetamido-5,6-didehydro- (8CI) Colchicine, deacetamido-6-dehydro- (7CI) Deacetamido-5,6-didehydrocolchicine Deacetamido-6-dehydrocolchicine