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89276-89-1 2,7-naphthalenedisulfonic acid,3-amino-4-[(3,6-disulfo-1-naphthalenyl)azo]-, tetrasodium

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Product Name 2,7-Naphthalenedisulfonic acid,3-amino-4-[(3,6-disulfo-1-naphthalenyl)azo]-, tetrasodium salt
CAS No. 89276-89-1
Molecular Formula C20H15N3O12S4・4Na