(1)Benzopyrano(2,3-b)(1,5)benzodiazepin-13(6H)-one, 2-chloro-1,6-dimethyl-9-nitro- 115396-49-1 2-Chloro-1,6-dimethyl-9-nitro-(1)benzopyrano(2,3-b)(1,5)benzodiazepin-13(6H)-one