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89310-91-8 1-naphthalenesulfonic acid, 4-amino-5-hydroxy-6-(2-naphthalenylazo)-,monosodium salt

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Product Name 1-Naphthalenesulfonic acid, 4-amino-5-hydroxy-6-(2-naphthalenylazo)-,monosodium salt
CAS No. 89310-91-8
Molecular Formula C20H15N3O4S・Na