2154-66-7 305-80-6 4-Sulfobenzenediazonium 4-Sulfophenyldiazonium 4-Sulphodiazobenzene 4332-41-6 Benzenediazonium, 4-sulfo- Benzenediazonium, p-sulfo- DABS DASA Diazobenzene sulfonate Diazobenzenesulfonate Diazobenzenesulfonic acid Diazobenzenesulphonate Diazonium salt of sulfanilic acid Diazosulfanilic acid Pauly's reagent Sulfanilic acid diazonium salt p-Diazoniumbenzenesulfonic acid