19007-22-8 5,9,10,14b-Tetrahydro-5-methyl-2-nitroisoquino(2,1-d)(1,4)benzodiazepin-6(7H)-one BRN 0765371 Isoquino(2,1-d)(1,4)benzodiazepin-6(7H)-one, 5,9,10,14b-tetrahydro-5-methyl-2-nitro-