1-4-(3-Methyltriazeno)benzoic acid 1-p-(3-Methyltriazeno)benzoic acid potassium salt 114482-40-5 4-(3-Methyl-1-triazenyl)benzoic acid 40843-84-3 Benzoic acid, 4-(3-methyl-1-triazenyl)- MM-Cook MTBA