1420-08-2 4-08-00-03562 (Beilstein Handbook Reference) BENZO(a)HEPTALEN-9(5H)-ONE, 6,7-DIHYDRO-1,2,3,10-TETRAMETHOXY- BRN 2016000 Deacetamidocolchicine Deacetylaminocolchicine Desacetamidocolchicine Desacetylaminocolchicine