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220348-90-3 2,7-naphthalenedisulfonic acid,3,4-dihydro-4-oxo-3-(phenylhydrazono)-, disodium salt

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Product Name 2,7-Naphthalenedisulfonic acid,3,4-dihydro-4-oxo-3-(phenylhydrazono)-, disodium salt
CAS No. 220348-90-3
Molecular Formula C16H12N2O7S2・2Na