2(1H)-Pyrimidinethione, 1,1'-(1,3-phenylene)bis(3,4-dihydro-4,4,6-trimethyl- 4-24-00-00136 (Beilstein Handbook Reference) 63886-72-6 BRN 0048406 USAF K-1359 m-Phenylenebis-1,1'-(2-thio-4,4,6-trimethyldihydropyrimidine)