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56444-96-3 2,7-naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-(phenylazo)-,disodium salt

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Product Name 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-(phenylazo)-,disodium salt
CAS No. 56444-96-3
Molecular Formula C16H13N3O7S2・2Na