1,4-Di(1,3-dithiolan-2-ylidene)-1.lambda.~5~,4.lambda.~5~-piperazine 74038-05-4 AIDS-127804 AIDS127804 NSC191956 Piperazinium, 1,4-bis(1,3-dithiolan-2-ylidene)-, dibromide Piperazinium, {N,N'-bis[2-(1,3-dithiolanylidene)]-,} dibromide {N,N'-Bis[2-(1,3-dithiolanylidene)]piperazinium} dibromide