CAS 1634-82-8 appears in our catalog under these names: 2-(4-Hydroxyphenylazo)benzoic acid, 95%, 2–(4–Hydroxyphenylazo)benzoic acid, 2-(4-Hydroxyphenylazo)benzoicacid/ 98.71% (existing batch purity), 2-(4-Hydroxyphenylazo)benzoic acid, 97% , 2-(4-Hydroxyphenylazo)benzoic acid. Offered by: Combi-blocks, GLPBio, TargetMol, Thermo Scientific (Alfa Aesar), Biosynth. Available pack sizes: 1g, 25g, 5g, 100mg, 500mg, 10g, 50g, 0,05kg.