(s)-amlodipine besylate

Levamlodipine besylate ((S)-Amlodipine Besylate (103129-82-4(free base))) , also known as S-amlodipine, is a pharmacologically active enantiomer of amlodipine, an antihypertensive and anti-anginal medication. Levamlodipine besylate belongs to the dihydropyridine group of calcium channel blockers. The names S-amlodipine and levamlodipine may be used interchangeably as both substances are the same, however, with differing nomenclature. As a racemic mixture, amlodipine contains (R) and (S)-amlodipine isomers, but only (S)-amlodipine as the active moiety possesses therapeutic activity.

Olmesartan medoxomil impurity C is an impurity of Olmesartan medoxomil, a potent and selective angiotensin (AT1 receptor) inhibitor with an IC50 of 66.2 μM.