1780-40-1 2,4,5,6-Tetrachloro-1,3-pyrimidine 2,4,5,6-Tetrachloropyrimidine 5-23-05-00347 (Beilstein Handbook Reference) AI3-26568 BRN 0145778 EINECS 217-228-3 NSC 35123 PYRIMIDINE, 2,4,5,6-TETRACHLORO- Perchloropyrimidine Pyrimidine, tetrachloro- Tetrachloropyrimidine