Rasagiline S-Isomer

Rasagiline S-Isomer is the enantiomerically pure S-configured stereoisomer of the monoamine oxidase inhibitor Rasagiline, characterized by a chiral center at the propylamine moiety. Its structure features a phenyl ring substituted with a cyclopropylmethyl group linked via a methylene bridge to an amine center. As a pharmacologically inactive enantiomer, it arises during enantioselective synthesis or racemic resolution processes. This compound serves as an HPLC reference standard for quantifying enantiomeric impurities in Rasagiline active pharmaceutical ingredients.