4-14-00-00959 (Beilstein Handbook Reference) 63620-51-9 BRN 3181473 CARBAMIC ACID, (5,6,7,9-TETRAHYDRO-10-(METHYLTHIO)-9-OXO-1,2,3-TRIMETHOXYBENZO(a Carbamic acid, (5,6,7,9-tetrahydro-10-(methylthio)-9-oxo-1,2,3-trimethoxybenzo(a)heptalen-7-yl)-, ethyl ester, (S)- N-(Ethoxycarbonyl)deacetylthiocolchicine NSC 249278