The chemical Sodium phosphate monobasic may have other designations, including: Acid sodium phosphate, EINECS 231-449-2, HSDB 738, Monobasic sodium phosphate, Monosodium dihydrogen orthophosphate, Monosodium dihydrogen phosphate, Monosodium hydrogen phosphate, Monosodium monophosphate, Monosodium orthophosphate, Monosodium phosphate, Monosodium phosphate, anhydrous (ChemID).