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89806-75-7 1-naphthalenesulfonic acid, 4-[(2-hydroxy-5-sulfophenyl)azo]-,dipotassium salt

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Product Name 1-Naphthalenesulfonic acid, 4-[(2-hydroxy-5-sulfophenyl)azo]-,dipotassium salt
CAS No. 89806-75-7
Molecular Formula C16H12N2O7S2・2K