2,4-Dihydro-5-methyl-4-((4-(methylsulfonyl)-2-nitrophenyl)azo)-2-phenyl-3H-pyrazol-3-imine 2,4-Dihydro-5-methyl-4-((4-(methylsulphonyl)-2-nitrophenyl)azo)-2-phenyl-3H-pyrazol-3-imine 3H-Pyrazol-3-imine, 2,4-dihydro-5-methyl-4-((4-(methylsulfonyl)-2-nitrophenyl)azo)-2-phenyl- 70528-91-5 EINECS 274-661-0