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89273-37-0 2-naphthalenesulfonic acid, 6-amino-4-hydroxy-3-(2-naphthalenylazo)-,monosodium salt

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Product Name 2-Naphthalenesulfonic acid, 6-amino-4-hydroxy-3-(2-naphthalenylazo)-,monosodium salt
CAS No. 89273-37-0
Molecular Formula C20H15N3O4S・Na