4H-(1,2,4)Triazolo(4,3-a)(1,4)benzodiazepine, 8-chloro-6-(2-chlorophenyl)-1-(4-(2-(methylthio)ethyl)-1-piperazinyl)-, (R-(R*,R*))-2,3-dihydroxybutanedioate (1:1) 88701-76-2