3-Bromo-2,4-dichloropyridine144584-32-730 % similar 4-Bromo-2,3-dimethylpyridine259807-91-530 % similar 2-Chloro-3,5-dibromopyridine40360-47-230 % similar 5-Bromo-2,3-dichloropyridine97966-00-230 % similar