1,1,5,5-Tetraethyl-3-(p-diethylaminophenyl)-2,4-dithiobiuret 3-(p-Diethylaminophenyl)-2,4-dithio-1,1,5,5-tetraethylbiuret 73728-83-3 BIURET, 3-(p-DIETHYLAMINOPHENYL)-2,4-DITHIO-1,1,5,5-TETRAETHYL-