1-Pyrroline-5-carboxylic acid

1-Pyrroline-5-carboxylic acid
Names
	Preferred IUPAC name 3,4-Dihydro-2H-pyrrole-2-carboxylic acid
	Other names 1-Pyrroline-5-carboxylic acid; δ-1-Pyrroline-5-carboxylic acid; P5C
Identifiers
CAS Number	2906-39-0 ;
3D model (JSmol)	Interactive image; Interactive image;
ChEBI	CHEBI:1372 ;
ChEMBL	ChEMBL1161508 ;
ChemSpider	1159 ;
KEGG	C04322 ;
MeSH	Delta-1-pyrroline-5-carboxylate
PubChem CID	1196;
UNII	52TNU46DHL ;
CompTox Dashboard (EPA)	DTXSID00863056 ;
	InChI InChI=1S/C5H7NO2/c7-5(8)4-2-1-3-6-4/h3-4H,1-2H2,(H,7,8) Key: DWAKNKKXGALPNW-UHFFFAOYSA-N ; InChI=1/C5H7NO2/c7-5(8)4-2-1-3-6-4/h3-4H,1-2H2,(H,7,8) Key: DWAKNKKXGALPNW-UHFFFAOYAB;
	SMILES C1CC(N=C1)C(=O)O; O=C(O)C1/N=C\CC1;
Properties
Chemical formula	C5H7NO2
Molar mass	113.115 g/mol
Acidity (pKa)	1.82/6.07
	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

1-Pyrroline-5-carboxylic acid (systematic name 3,4-dihydro-2H-pyrrole-2-carboxylic acid) is a cyclic imino acid. Its conjugate base and anion is 1-pyrroline-5-carboxylate (P5C). In solution, P5C is in spontaneous equilibrium with glutamate-5-semialdehyde (GSA).