3-((3-carboxy-4-hydroxyphenyl)diazenyl)-2-hydroxybenzoic acid;3-[2-(3-Carboxy-4-hydroxyphenyl)diazenyl]-2-hydroxy-benzoic Acid; 3-[(3-Carboxy-4-hydroxyphenyl)azo]-2-hydroxy-benzoic Acid;4-Dehydroxy-2-hydroxy Olsalazine
3-((3-carboxy-4-hydroxyphenyl)diazenyl)-2-hydroxybenzoic acid;3-[2-(3-Carboxy-4-hydroxyphenyl)diazenyl]-2-hydroxy-benzoic Acid; 3-[(3-Carboxy-4-hydroxyphenyl)azo]-2-hydroxy-benzoic Acid;4-Dehydroxy-2-hydroxy Olsalazine