Olanzapine EP Impurity D Catalogue A286234 CAS 174794-02-6 M.W 328.43 M.F C17H20N4OS Specifications FAQs Synonyms:1-methyl-4-(2-methyl-10H-benzo[b]thieno[2,3-e][1,4]diazepin-4-yl)piperazine 1-oxide