Synonyms: NSC339168;66427-86-9;6H-Pyrimido(4,5-b)(1,4)benzodiazepin-6-one, 2-chloro-5,11-dihydro-11-methyl-;6H-Pyrimido[4,5-b][1,4]benzodiazepin-6-one, 2-chloro-5,11-dihydro-11-methyl-;AC1L7F5H;NSC 339168;NSC-339168;NCI60_002999;2-chloro-11-methyl-5H-pyrimido[4,5-b][1,4]benzodiazepin-6-one;2-Chloro-11-methyl-5H-benzo[e]pyrimido[5,4-b][1,4]diazepin-6(11H)-one