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89273-34-7 2-naphthalenesulfonic acid,8-amino-4-hydroxy-3-[(6-sulfo-2-naphthalenyl)azo]-, disodium s

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Product Name 2-Naphthalenesulfonic acid,8-amino-4-hydroxy-3-[(6-sulfo-2-naphthalenyl)azo]-, disodium salt
CAS No. 89273-34-7
Molecular Formula C20H15N3O7S2・2Na