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2,4-Dihydro-4-[(2-hydroxy-5-nitrophenyl)azo]-5-methyl-2-[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]-3H-pyrazol-3-one Structure

2,4-Dihydro-4-[(2-hydroxy-5-nitrophenyl)azo]-5-methyl-2-[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]-3H-pyrazol-3-one