73718-60-2

3-hydroxy-4-[(4-methyl-3-sulfophenyl)azo]-2-naphthalenecarboxylic aci calci 3-hydroxy-4-[(4-methyl-3-sulfophenyl)azo]-2-naphthalenecarboxylic aci calcium salt (4Z)-4-[(4-methyl-3-sulfonatophenyl)hydrazinylidene]-3-oxonaphthalene-2-carboxylate 2-Naphthalenecarboxylic acid, 3-hydroxy-4-(4-methyl-3-sulfophenyl)azo-, calcium salt