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89023-42-7 2-naphthalenesulfonic acid, 4-hydroxy-7-[(2-nitro-4-sulfophenyl)amino]-

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Product Name 2-Naphthalenesulfonic acid, 4-hydroxy-7-[(2-nitro-4-sulfophenyl)amino]-
CAS No. 89023-42-7
Molecular Formula C16H12N2O9S2