1,2,4,5,6,7-Hexahydropyrrolo(1,2,3-ef)(1,5)benzodiazepine dihydrochloride 28740-82-1 Pyrrolo(1,2,3-ef)(1,5)benzodiazepine, 1,2,4,5,6,7-hexahydro-, dihydrochloride