Claim: Alprenoxime, a prodrug to alprenolol with a molecular formula of C15H22N2O2, has a molecular weight of 262.34738 g/mol, and a monoisotopic mass of 262.168128 g/mol.
Evidence: It is a prodrug to alprenolol. Molecular Formula C15H22N2O2 Molecular Weight 262.34738 g/mol Monoisotopic Mass 262.168128 g/mol