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89276-87-9 2,7-naphthalenedisulfonic acid,4-[(4-amino-1-naphthalenyl)azo]-5-hydroxy-, disodium salt

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CAS No. 89276-87-9
Product Name 2,7-Naphthalenedisulfonic acid,4-[(4-amino-1-naphthalenyl)azo]-5-hydroxy-, disodium salt
Molecular Formula C20H15N3O7S2・2Na