1-Naphthalenesulfonic acid, 4-[(3,4-dihydroxyphenyl)azo]- is a chemical compound registered under CAS number 2293-08-5, with the molecular formula C16H12N2O5S and a molecular weight of about 344.34 g/mol. NewsChem supplies 1-Naphthalenesulfonic acid, 4-[(3,4-dihydroxyphenyl)azo]- for laboratory research and bulk production; product code 768532. Send an inquiry for purity, packaging, price and lead time.