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89273-50-7 1-naphthalenesulfonic acid,4-amino-5-hydroxy-3-[(7-sulfo-2-naphthalenyl)azo]-, disodium s

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Product Name 1-Naphthalenesulfonic acid,4-amino-5-hydroxy-3-[(7-sulfo-2-naphthalenyl)azo]-, disodium salt
CAS No. 89273-50-7
Molecular Formula C20H15N3O7S2・2Na