The chemical Magnesium nitrate hexahydrate has a designated molecular formula of H12MgN2O12 and a molecular weight of 256.403 g/mol. Synonyms may include: Dusicnan horecnaty [Czech], Magnesium dinitrate hexahydrate, Nitric acid, magnesium salt, hexahydrate, Dusicnan horecnaty, UNII-V85K20LJMK (ChemID).