2-Demethyl-N-trifluoroacetyl-deacetylcolchicine 86436-46-6 Acetamide, 2,2,2-trifluoro-N-(5,6,7,9-tetrahydro-2-hydroxy-1,3,10-trimethoxy-9-oxobenzo[a]heptalen-7-yl)-, (S)- COLCHINE, 2-DEMETHYL, N-TRIFLUORO ACETYL NSC335989