(1)BENZOPYRANO(2,3-b)(1,5)BENZODIAZEPIN-13(5aH)-ONE, 6,11-DIHYDRO-2-CHLORO-6-ETH (1)Benzopyrano(2,3-b)(1,5)benzodiazepin-13(5ah)-one, 6,11-dihydro-2-chloro-6-ethyl-1-methyl-7-nitro- 119707-45-8