2-(Diphenylmethylene)-N-((4,5,7-trimethyl-2-oxo-2H-1-benzopyran-8-yl)sulfonyl)carbazamide 85302-47-2 Hydrazinecarboxamide, 2-(diphenylmethylene)-N-((4,5,7-trimethyl-2-oxo-2H-1-benzopyran-8-yl)sulfonyl)-