Esomeprazole sodium

Esomeprazole sodium, also known as S-Omeprazole sodium or (S)-Omeprazole sodium salt, is the sodium salt form of the S-enantiomer of omeprazole. Identified by CAS 161796-78-7 and EC 620-470-6, it is classified as a pharmaceutical intermediate with documented antimicrobial properties.

In pharmaceutical manufacturing, esomeprazole sodium serves as an active pharmaceutical ingredient (API) precursor in the production of proton pump inhibitor formulations targeting gastric acid suppression. Its antimicrobial activity also supports its evaluation as a preservation agent in specific healthcare formulations, where it acts by disrupting microbial cellular function.

Esomeprazole sodium is supplied as a solid and is handled in accordance with REACH regulations applicable to the European market. Procurement teams should confirm Ph.Eur. compliance requirements with the supplier prior to ordering, as grade specifications vary by intended application. Packaging formats are available on request.