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89310-80-5 1-naphthalenesulfonic acid, 4-amino-3-[(7-sulfo-2-naphthalenyl)azo]-,dipotassium salt

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Product Name 1-Naphthalenesulfonic acid, 4-amino-3-[(7-sulfo-2-naphthalenyl)azo]-,dipotassium salt
CAS No. 89310-80-5
Molecular Formula C20H15N3O6S2・2K