5-Bromo-3-chloro-2-fluoropyridine38185-56-730 % similar 5-Bromo-2-chloro-3-fluoropyridine831203-13-530 % similar 5-Bromo-3-methyl-2(1H)-pyridinone89488-30-230 % similar 5-Bromo-3-hydroxy-2-methylpyridine91420-25-630 % similar