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