CAS No : 37052-78-1 EINECS No : 253-326-2 Molecular Weight : 180.23 gram/mole Synonyms 2-mercapto benzimidazole-2-benzimidazole-2-thiol;1,3-Dihydro-5-methoxy- 2H-benzimidazole-2-thione Application Intermediate for Omeprazole and Esomeprazole