1,1-Diphenyl-2-picrylhydrazyl (free radical) 111051-84-4 1898-66-4 2,2'-DIPHENYLPICRYLHYDRAZYL 2,2-Diphenyl-1-(2,4,6-trinitrophenyl)hydrazyl 2,2-Diphenyl-1-picrylhydrazyl 4-15-00-01210 (Beilstein Handbook Reference) 56537-16-7 AI3-61739 BRN 1846081 DPPH Diphenylpicrylhydrazyl free radical EINECS 217-591-8 Hydrazyl, 2,2-diphenyl-1-(2,4,6-trinitrophenyl)- Hydrazyl, 2,2-diphenyl-1-picryl- (8CI) N,N-Diphenyl-N'-picrylhydrazyl NSC 12562