Dinicotinic acid

Dinicotinic acid (pyridine-3,5-dicarboxylic acid) is an organic compound that belongs to the heterocycles (more precisely, heteroaromatics). It belongs to the group of pyridine dicarboxylic acids and consists of a pyridine ring, which carries two carboxy groups in the 3- and 5-position.

Dinicotinic acid

Names
IUPAC name Pyridine-3,5-dicarboxylic acid
Other names 3,5-Pyridinedicarboxylic acid
Identifiers
CAS Number	499-81-0
3D model (JSmol)	Interactive image
Beilstein Reference	131640
ChEBI	CHEBI:46875
ChEMBL	ChEMBL446761
ChemSpider	9939
ECHA InfoCard	100.007.177
EC Number	207-893-8
Gmelin Reference	279307
PubChem CID	10366
CompTox Dashboard (EPA)	DTXSID10198149
InChI InChI=1S/C7H5NO4/c9-6(10)4-1-5(7(11)12)3-8-2-4/h1-3H,(H,9,10)(H,11,12) Key: MPFLRYZEEAQMLQ-UHFFFAOYSA-N
SMILES C1=C(C=NC=C1C(=O)O)C(=O)O
Properties
Chemical formula	C7H5NO4
Molar mass	167.120 g·mol−1
Hazards
GHS pictograms
GHS Signal word	Warning
GHS hazard statements	H315, H319, H335
GHS precautionary statements	P261, P264, P271, P280, P302+352, P304+340, P305+351+338, P312, P321, P332+313, P337+313, P362, P403+233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Upon heating, it decarboxylates and decomposes to nicotinic acid:[1]