CAS 171440-19 appears in our catalog under these names: Rabeprazole Impurity 18（Rabeprazole Sodium S-Isomer）, Sodium (S)-2-(((4-(3-methoxypropoxy)-3-methylpyridin-2-yl)methyl)sulfinyl)benzo[d]imidazol-1-ide, 95%, (S)-Rabeprazole Sodium Salt, (S)-Rabeprazole Sodium. Offered by: Hubei YoungXin, Chemat Brand, TRC, Biosynth. Available pack sizes: 10mg, 25mg, 50mg, 100mg, 200mg, on request, 250mg, 2mg.