4-amino-5-hydroxy-3-[[4-[[2-(sulphooxy)ethyl]sulphonyl]phenyl]azo]naphthalene-2,7-disulphonic acid;4-Amino-5-hydroxy-3-[p-[2-(sulfooxy)ethylsulfonyl]phenylazo]-2,7-naphthalenedisulfonic acid;Einecs 279-998-7
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