2,3,4,5,6-Pentachlorpyridine, 2,3,4,5,6-pentachloro pyridine, pentachloro-pyridine, 3,5-dichloro-2,4,6-trichloropyridine, Pyridine, pentachloro-, Pentachlor-pyridin, pentachloro-pyridin, 2,3,4,5,6-PENTCHLOROPYRIDINE, Pentapyridine, 2,3,4,5,6-pentachloro-pyridin, Perchloropyridine, pentachlorpyridine