Picolinic acid

Picolinic acid
Names
	Preferred IUPAC name Pyridine-2-carboxylic acid
	Other names Picolinic acid
Identifiers
CAS Number	98-98-6 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:28747 ;
ChEMBL	ChEMBL72628 ;
ChemSpider	993 ;
ECHA InfoCard	100.002.472
PubChem CID	1018;
UNII	QZV2W997JQ ;
CompTox Dashboard (EPA)	DTXSID7031903 ;
	InChI InChI=1S/C6H5NO2/c8-6(9)5-3-1-2-4-7-5/h1-4H,(H,8,9) Key: SIOXPEMLGUPBBT-UHFFFAOYSA-N ; InChI=1/C6H5NO2/c8-6(9)5-3-1-2-4-7-5/h1-4H,(H,8,9) Key: SIOXPEMLGUPBBT-UHFFFAOYAC;
	SMILES c1ccnc(c1)C(=O)O;
Properties
Chemical formula	C6H5NO2
Molar mass	123.111 g·mol−1
Appearance	White to tan crystalline solid
Melting point	136 to 138 °C (277 to 280 °F; 409 to 411 K)
Solubility in water	Slightly soluble (0.41%) in water
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Picolinic acid is an organic compound with the formula C
₅H
₄NCOOH). It is a derivative of pyridine with a carboxylic acid (COOH) substituent at the 2-position. It is an isomer of nicotinic acid and isonicotinic acid, which have the carboxyl side chain at the 3- and 4-positions, respectively. It is a white solid that is soluble in water.

In synthetic organic chemistry, has been used as a substrate in the Mitsunobu reaction and in the Hammick reaction.^[2]

^ Lide, DR. "CRC Handbook of Chemistry and Physics, Internet Version 2005, http://hbcpnetbase.com, CRC Press, Boca Raton, Florida, 2005". {{cite journal}}: Cite journal requires |journal= (help)
^ Fuchs, Philip L. (29 July 2013). "Picolinic acid". Catalytic Oxidation Reagents. Wiley Inc. p. 495ff. ISBN 9781118704844. OCLC 954583821.

[CRC_Handbook-1] Lide, DR. "CRC Handbook of Chemistry and Physics, Internet Version 2005, http://hbcpnetbase.com, CRC Press, Boca Raton, Florida, 2005". {{cite journal}}: Cite journal requires |journal= (help)

[2] Fuchs, Philip L. (29 July 2013). "Picolinic acid". Catalytic Oxidation Reagents. Wiley Inc. p. 495ff. ISBN 9781118704844. OCLC 954583821.

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