1333-39-7 25551-07-9 31472-80-7 Benzenesulfonic acid, hydroxy- Caswell No. 650 EINECS 215-587-0 EPA Pesticide Chemical Code 064102 HSDB 5818 HYDROXYBENZENESULFONIC ACID Hydroxy benzenesulfonic acid Hydroxybenzenesulphonic acid Phenolsulfonic acid Phenolsulfonic acid, liquid [UN1803] [Corrosive] Phenolsulphonic acid Sulfocarbolic acid UN1803