3,4-Difluoro-2-(trifluoromethyl)pyridine
2,4-Difluoro-6-(trifluoromethyl)pyridine
2,4-Difluoro-5-(trifluoromethyl)pyridine
2,4-Difluoro-3-(trifluoromethyl)pyridine
+86(0) 189-6910-6387
[email protected]