122984-76-3 13108-52-6 2,3,5,6-Tetrachloro-4-(methylsulfonyl)pyridine 2,3,5,6-Tetrachloro-4-(methylsulphonyl)pyridine 4-(Methylsulfonyl)-2,3,5,6-tetrachloropyridine 5-21-02-00127 (Beilstein Handbook Reference) BRN 1537517 Caswell No. 830A Dowicil S-13 EINECS 236-035-5 EPA Pesticide Chemical Code 068901 Pyridine, 2,3,5,6-tetrachloro-4-(methylsulfonyl)- Pyridine, 4-(methylsulfonyl)-2,3,5,6-tetrachloro- SA 1013 Tetrachloromethylsulfonylpyridine