(9-Methyladenine-N(1),N(7))-bis(diisopropylsulfoxide-S)-trans-dichloroplatinum (II) 61458-74-0 Platinum, tetrachloro(mu-(9-methyl-9H-purin-6-amine-N(1):N(7)))bis(2,2'-sulfinylbis(propane)-S)di-, stereoisomer