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