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Rabeprazole EP Impurity H Catalogue No. - VL970005 CAS No. - 168167-42-8 Molecular Formula - C14H12ClN3OS Molecular Weight - 305.78 IUPAC Name - 2-[(RS)-[(4-Chloro-3-methylpyridin-2-yl)methyl]sulphinyl]-1H-benzimidazole Synonyms - Lansoprazole EP Impurity F / Rabeprazole Related Compound F / Rabeprazole 4-Chloro Analog