Bromopyridines

Bromopyridines
Surname	2-bromopyridine	3-bromopyridine	4-bromopyridine
Structural formula
CAS number	109-04-6	626-55-1	1120-87-2
PubChem	7973	12286	14268
Molecular formula	C 5 H 4 BrN
Molar mass	158.00 g mol −1
Physical state	liquid
Melting point	−40.1 ° C	−27.3 ° C	0.5 ° C
boiling point	193 ° C	173 ° C	29 ° C (0.4 Torr)
GHS labeling	danger	Caution	no classification available
H and P phrases	301-310-315-319-335	315-319-335	see above
	no EUH phrases	no EUH phrases	see above
	280-302 + 352-304 + 340 305 + 351 + 338	302 + 352-304 + 340 305 + 351 + 338	see above

In chemistry, the bromopyridines form a group of organic compounds that belong to the heterocycles (more precisely: heteroaromatics ). They consist of a pyridine ring that is substituted with bromine  (−Br). Its different arrangement results in three constitutional isomers with the empirical formula C ₅ H ₄ BrN.

Individual evidence

1. ↑ ^{a b c d e f} David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Physical Constants of Organic Compounds, pp. 3-70.
2. ↑ Data sheet 2-bromopyridine (PDF) from Merck , accessed on June 23, 2011.
3. ↑ Data sheet 3-bromopyridine (PDF) from Merck , accessed on June 23, 2011.