The chemical Sodium iodide has a designated molecular formula of INa and a molecular weight of 149.894 g/mol. Synonyms may include: Caswell No. 777, EINECS 231-679-3, EPA Pesticide Chemical Code 075702, HSDB 750, Iodure de sodium, Ioduril, Jodid sodny [Czech], Natrii iodidum, Natriumjodid [German], NSC 77388, Sodium iodide (NaI), Sodium monoiodide (ChemID).