H2O4S, CAS Number-7664-93-9, electrolyte acid, acidum sulfuricum, battery acid, dihydrogen sulfate, sulphuric acid, oil of vitriol, acide sulfurique, mattling acid, vitriol brown oil, dipping acid, 2.5L, 290 deg.C, CHEBI:26836, Colorless, 98.07g/mol, QAOWNCQODCNURD-UHFFFAOYSA-N, sulfuric acid