14686-60-3 Colchicine, N-deacetyl-N-methyl-N-propionyl- N-Propionyldemecolcine Propanamide, N-methyl-N-(5,6,7,9-tetrahydro-1,2,3,10-tetramethoxy-9-oxobenzo(a)heptalen-7-yl)-, (S)-