74099-05-1 7H-ISOQUINO(2,1-d)(1,4)BENZODIAZEPIN-8-IUM, 6,7,9,10-TETRAHYDRO-2-CHLORO-12,13-D 7H-Isoquino(2,1-d)(1,4)benzodiazepin-8-ium, 6,7,9,10-tetrahydro-2-chloro-12,13-dimethoxy-7-ethyl-6-oxo-, bromide