3-Chloro-2-(trifluoromethoxy)pyridine-5-sulfonyl chloride
3-Chloro-2-(trifluoromethoxy)pyridine-4-sulfonyl chloride
6-Chloro-2-(trifluoromethoxy)pyridine-3-sulfonyl chloride
2-Chloro-6-(trifluoromethoxy)pyridine-4-sulfonyl chloride
+86(0) 189-6910-6387
[email protected]