Esomeprazole (sodium) (Standard) is the analytical standard of Esomeprazole (sodium). This product is intended for research and analytical applications. Esomeprazole sodium ((S)-Omeprazole sodium) is a potent and orally active proton pump inhibitor. Esomeprazole reduces acid secretion through inhibition of the H⁺, K⁺-ATPase in gastric parietal cells. Esomeprazole acts as an exosome inhibitor by blocking the exosome release via the inhibition of V-H⁺-ATPases^[4]. Esomeprazole has the potential for symptomatic gastroesophageal reflux disease research^[1][2][3].