sodium 3-[[5-[(diethylamino)sulphonyl]-2-methoxyphenyl]azo]-4-hydroxynaphthalene-1-sulphonate;3-[[5-[(Diethylamino)sulfonyl]-2-methoxyphenyl]azo]-4-hydroxy-1-naphthalenesulfonic acid sodium salt;Einecs 288-422-3
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