30957-65-4 4-(Di-(p-nitrobenzamido))antipyrine BRN 0772651 Dibenzamide, N-(2,3-dimethyl-5-oxo-1-phenyl-3-pyrazolin-4-yl)-4,4'-dinitro- Dibenzamide, N-antipyriyl-4,4'-dinitro- N-(2,3-Dimethyl-5-oxo-1-phenyl-3-pyrazolin-4-yl)-4,4'-dinitrodibenzamide