Benzenesulfonamide,3-[4,5-dihydro-3-methyl-4-[(4-methyl-2-nitrophenyl)azo]-5-oxo-1H-pyrazol-1-yl]-(9CI); Benzenesulfonamide,m-[3-methyl-4-[(2-nitro-p-tolyl)azo]-5-oxo-2-pyrazolin-1-yl]- (6CI,7CI)
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