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IUPAC Name: 6-amino-4-oxo-3-(phenylhydrazinylidene)naphthalene-2,7-disulfonic acid; sodium | CAS Registry Number: 6222-38-4
Synonyms: Azo Orseille R, NSC45189, C.I. 17160, 2,7-Naphthalenedisulfonic acid, 6-amino-4-hydroxy-3-(phenylazo)-, disodium salt

Molecular Formula:	C₁₆H₁₃N₃NaO₇S₂	Molecular Weight:	446.410090 [g/mol]
H-Bond Donor:	4	H-Bond Acceptor:	10

InChIKey: SVBBYWPHNCBKQD-UHFFFAOYSA-N