2,3,4,5,6-Pentachloropyridine 2176-62-7 5-20-05-00422 (Beilstein Handbook Reference) BRN 0155197 EINECS 218-535-5 HSDB 5867 NSC 26286 PENTACHLOROPYRIDINE Perchloropyridine Pyridine, 2,3,4,5,6-pentachloro- Pyridine, pentachloro-