2,7-Naphthalenedisulfonicacid, 5-(acetylamino)-4-hydroxy-3-[[4-methoxy-3-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-(9CI); 2,7-Naphthalenedisulfonic acid,5-acetamido-4-hydroxy-3-[[3-[(2-hydroxyethyl)sulfonyl]-4-methoxyphenyl]azo]-,3-(hydrogen sulfate) (8CI)
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