1-Naphthol-3-sulfonicacid, 6,6'-ureylenebis- (6CI);2-Naphthalenesulfonic acid, 7,7'-ureylenebis[4-hydroxy-(8CI);6,6'-Ureylenebis(1-naphthol-3-sulfonic acid);Carbonyl J;I AcidUrea;J acid urea;N,N'-Bis(5-hydroxy-7-sulfo-2-naphthyl)urea;NSC 1699;NSC 45174;UreaJ Acid;Scarlet Acid;
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