1,4-Bis(4,6-dimethylpyrimidinyl-2-thio)butane 14961-47-8 2,2'-(1,4-Butanediylbis(thio))bis(4,6-dimethylpyrimidine) 5-23-11-00166 (Beilstein Handbook Reference) BRN 0821311 Pyrimidine, 2,2'-(1,4-butanediylbis(thio))bis(4,6-dimethyl-