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 solid
Density	1.526 g/cm³
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 NC₅H₄CO₂H. 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 although impure samples can appear tan. The compound is soluble in water.