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139648-01-4 2,7-naphthalenedisulfonic acid, 5-hydroxy-3-[(4-hydroxyphenyl)azo]-,disodium salt

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Product Name 2,7-Naphthalenedisulfonic acid, 5-hydroxy-3-[(4-hydroxyphenyl)azo]-,disodium salt
CAS No. 139648-01-4
Molecular Formula C16H12N2O8S2・2Na