4,6(1H,5H)-Pyrimidinedione, 5-(5-(1,3-diethylhexahydro-4,6-dioxo-2-thioxo-5-pyrimidinyl)-2,4-pentadienylidene)-1,3-diethyldihydro-2-thioxo-, compd. with N,N-diethylethanamine, silver(1+) salt (2:1:1) 72252-42-7