Sodium hypobromite is represented with the chemical formula BrNaO. It is a negatively charged polar molecule consisting of three atoms: one bromine, one oxygen and one sodium.
Each molecule consists of two covalently bonded units, yielding an average molecular mass of 118.89 grams per mole. Its structure involves a covalent bond between bromine and an oxygen ion, also known as hypobromite, which then forms a covalent bond with a positive sodium ion in order to form a sodium hypobromite molecule. Hypobromous acid and sodium salt are alternative names for the compound. In the simplified molecular-input line-entry system (SMILES), the compound is translated as [O-]Br.[Na+].