Iodopyridines

Iodopyridines
Surname	2-iodopyridine	3-iodopyridine	4-iodopyridine
Structural formula
CAS number	5029-67-4	1120-90-7	15854-87-2
PubChem	221126	70714	609492
Molecular formula	C 5 H 4 IN
Molar mass	205.00 g mol −1
Physical state	firmly
Melting point	52 ° C	53-56 ° C	94-99 ° C
boiling point	93 ° C (13 mmHg )
pK s value (of the conjugate acid BH + )	1.82 (25 ° C)	3.25 (25 ° C)	4.02 (20 ° C)
GHS labeling	Caution
H and P phrases	315-319-335	315-319-335	302-315-319-335
	no EUH phrases	no EUH phrases	no EUH phrases
	261-305 + 351 + 338

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

Individual evidence

1. ↑ ^{a b} Data sheet 2-Iodopyridine from Sigma-Aldrich , accessed on August 13, 2011 ( PDF ).
2. ↑ ^{a b} Data sheet 3-Iodopyridine from Sigma-Aldrich , accessed on August 13, 2011 ( PDF ).
3. ↑ ^{a b} Data sheet 4-Iodopyridine from Sigma-Aldrich , accessed on August 13, 2011 ( PDF ).
4. ↑ 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. 3-308.
5. ↑ CRC Handbook of Tables for Organic Compound Identification , Third Edition, 1984, ISBN 0-8493-0303-6 .