United States Pharmacopeia (USP) Reference Standard Synonym(s): 5,10-Dihydro-2-methyl-4 H -thieno[2,3- b ][1,5]benzodiazepin-4-one; 2-Methyl-4,9-dihydro-3-thia-4,9-diazabenzo[ f ]azulene-10-one; Olanzapine lactam Empirical Formula: C12H10N2OS Formula Weight: 230.29...