2,4-dihydro-5-methyl-4-[[4-(methylsulphonyl)-2-nitrophenyl]azo]-2-phenyl-3H-pyrazol-3-imine;2,4-Dihydro-5-methyl-4-(4-methylsulfonyl-2-nitrophenylazo)-2-phenyl-3H-pyrazol-3-imine
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