Picolinic acid

Picolinic acid

Names
Preferred IUPAC name Pyridine-2-carboxylic acid
Other names Picolinic acid
Identifiers
CAS Number	98-98-6 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:28747 Y
ChEMBL	ChEMBL72628 Y
ChemSpider	993 Y
ECHA InfoCard	100.002.472
PubChem CID	1018
UNII	QZV2W997JQ Y
CompTox Dashboard (EPA)	DTXSID7031903
InChI InChI=1S/C6H5NO2/c8-6(9)5-3-1-2-4-7-5/h1-4H,(H,8,9) Y Key: SIOXPEMLGUPBBT-UHFFFAOYSA-N Y 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[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) 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.