16665-61-5 Benzo[a]heptalen-9(5H)-one, 7-amino-6,7-dihydro-1,2,3-trimethoxy-10-(methylthio)-, hydrochloride, (S)- Colchicine, N-deacetyl-10-thio-, hydrochloride Deacetylthiocolchicine chlorhydrate NSC200708