(S)-Vilanterol is a selective beta-2 adrenergic receptor agonist. It is the active enantiomer of vilanterol, a medication used to treat chronic obstructive pulmonary disease (COPD) and asthma. Pharmaffiliates offers high-quality (S)-Vilanterol (CAS No: 2514963-34-7) at competitive pricing. Pharmaffiliates provides rare and unique chemicals and molecules, including APIs and intermediates, with a focus on quality and compliance. Request a quotation from our sales team or visit our website: https://www.pharmaffiliates.com/.