62238-67-9 7H-ISOQUINO(2,1-d)(1,4)BENZODIAZEPIN-8-IUM, 9,10-DIHYDRO-2-CHLORO-12,13-DIMETHOX 7H-Isoquino(2,1-d)(1,4)benzodiazepin-8-ium, 9,10-dihydro-2-chloro-12,13-dimethoxy-6-(p-methoxyphenyl)-, bromide