The chemical Mesna has a designated molecular formula of C2H5NaO3S2 and a molecular weight of 164.169 g/mol. Synonyms may include: CCRIS 3712, EINECS 243-285-9, 2-Mercaptoethane sulfonate sodium, 2-Mercaptoethanesulfonic acid monosodium salt, 2-Mercaptoethanesulfonic acid sodium salt, Mesnex, Mesnum, Mesnum [INN-Latin], Mistabron, Mistabronco, Mitexan, Mucofluid (ChemID).