25818-46-6 4-Pyrimidinecarboxylic acid, 5-((4-chlorophenyl)thio)-2-(methylthio)- 5-((4-Chlorophenyl)thio)-2-(methylthio)-4-pyrimidinecarboxylic acid 5-25-07-00007 (Beilstein Handbook Reference) BRN 0892637