1,4-Bis(4-morpholinyl-6-methylpyrimidin-2-yl)-1,4-butanedithiol 123392-13-2 4,4'-(1,4-Butanediylbis(thio(6-methyl-2,4-pyrimidinediyl)))bismorpholine BRN 4217133 Morpholine, 4,4'-(1,4-butanediylbis(thio(6-methyl-2,4-pyrimidinediyl)))bis-