3-(2,4-dihydroxyphenylazo)-4-hydroxybenzenesulphonic acid is a chemical compound registered under CAS number 2918-80-1, with the molecular formula C12H10N2O6S and a molecular weight of about 310.28 g/mol. Its EINECS (EC) number is 220-855-5. It is also known as 2,4,6-Trihydroxyazobenzene-3-sulfonic acid; 4-Hydroxy-3-[(2,4-dihydroxyphenyl)azo]benzenesulfonic acid. DeWeiChem supplies 3-(2,4-dihydroxyphenylazo)-4-hydroxybenzenesulphonic acid for laboratory research and bulk production; product code 712037. Send an inquiry for purity, packaging, price and lead time.