Benzenesulfonic acid,4-[[4-[(3-ethyl-5-methyl-1H-pyrazol-4-yl)azo]phenyl]azo]- is a chemical compound registered under CAS number 138688-94-5, with the molecular formula C18H18N6O3S and a molecular weight of about 398.44 g/mol. KingChemi supplies Benzenesulfonic acid,4-[[4-[(3-ethyl-5-methyl-1H-pyrazol-4-yl)azo]phenyl]azo]- for laboratory research and bulk production; product code 1197564. Send an inquiry for purity, packaging, price and lead time.