its olanzapine api intermediate . cas no- 138564-60-0 its yellowish color powder. synonyms: 4-amino-2-methyl-10h-thiene[2, 3-b][1, 5]benzodiazepine hydrochloride 4-amino-2-methyl-10h-thieno[2, 3-b]1, 5benzodiazepine hcl 4-amino-2-methyl-10h-thieno...