Robuta

https://pubchem.ncbi.nlm.nih.gov/compound/15619088 Hydroxybenzenesulfonic acid | C6H8O4S | CID 15619088 - PubChem Hydroxybenzenesulfonic acid | C6H8O4S | CID 15619088 - structure, chemical names, physical and chemical properties, classification, patents, literature,... acidpubchem