Glutaric acid

Glutaric acid

Names
IUPAC name pentanedioic acid
Other names Propane-1,3-dicarboxylic acid; 1,3-propanedicarboxylic acid; pentanedioic acid; n-Pyrotartaric acid
Identifiers
CAS Number	110-94-1 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:17859 Y
ChEMBL	ChEMBL1162495 Y
ChemSpider	723 Y
DrugBank	DB03553 Y
ECHA InfoCard	100.003.471
EC Number	203-817-2
KEGG	C00489 Y
PubChem CID	743
CompTox Dashboard (EPA)	DTXSID2021654
InChI InChI=1S/C5H8O4/c6-4(7)2-1-3-5(8)9/h1-3H2,(H,6,7)(H,8,9) Y Key: JFCQEDHGNNZCLN-UHFFFAOYSA-N Y InChI=1/C5H8O4/c6-4(7)2-1-3-5(8)9/h1-3H2,(H,6,7)(H,8,9) Key: JFCQEDHGNNZCLN-UHFFFAOYAU
SMILES C(CC(=O)O)CC(=O)O
Properties
Chemical formula	C5H8O4
Molar mass	132.12 g/mol
Melting point	95 to 98 °C
Boiling point	200 °C/20 mmHg
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

Glutaric acid is the organic compound with the formula C₃H₆(COOH)₂ . Although the related "linear" dicarboxylic acids adipic and succinic acids are water-soluble only to a few percent at room temperature, the water-solubility of glutaric acid is over 50%.

Preparation

Glutaric acid can be prepared by the ring-opening of butyrolactone with potassium cyanide to give the mixed potassium carboxylate-nitrile that is hydrolyzed to the diacid. Alternatively hydrolysis, followed by oxidation of dihydropyran gives glutaric acid. It can also be prepared from reacting 1,3-dibromopropane with sodium or potassium cyanide to obtain the dinitrile, followed by hydrolysis.

Uses

1,5-Pentanediol, a common plasticizer and precursor to polyesters is manufactured by hydrogenation of glutaric acid and its derivatives.

Glutaric acid itself has been used in the production of polymers such as polyester polyols, polyamides. The odd number of carbon atoms (i.e. 5) is useful in decreasing polymer elasticity.

External links

• Calculator: Water and solute activities in aqueous glutaric acid