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90333-24-7 2-naphthalenesulfonic acid,7-[(2,7-dihydroxy-1-naphthalenyl)azo]-4-hydroxy-, monosodium s

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Product Name 2-Naphthalenesulfonic acid,7-[(2,7-dihydroxy-1-naphthalenyl)azo]-4-hydroxy-, monosodium salt
CAS No. 90333-24-7
Molecular Formula C20H14N2O6S・Na