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^[2]) 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-semialdhyde (GSA).^[3]

^ "computed by Chemicalize from ChemAxon".
^ PubChem. "3,4-Dihydro-2H-pyrrole-2-carboxylic acid". pubchem.ncbi.nlm.nih.gov. Retrieved 2020-01-23.
^ Heacock, Anne M.; Williams, Irene H.; Frank, Leonard H.; Adams, Elijah (1975-04-01). "Δ1-Pyrroline-5-carboxylate and Δ1-pyrroline-3-hydroxy-5-carboxylate: Chromatography on the amino acid analyzer". Analytical Biochemistry. 64 (2): 593–600. doi:10.1016/0003-2697(75)90472-8. ISSN 0003-2697. PMID 236687.

[pKa-1] "computed by Chemicalize from ChemAxon".

[2] PubChem. "3,4-Dihydro-2H-pyrrole-2-carboxylic acid". pubchem.ncbi.nlm.nih.gov. Retrieved 2020-01-23.

[3] Heacock, Anne M.; Williams, Irene H.; Frank, Leonard H.; Adams, Elijah (1975-04-01). "Δ1-Pyrroline-5-carboxylate and Δ1-pyrroline-3-hydroxy-5-carboxylate: Chromatography on the amino acid analyzer". Analytical Biochemistry. 64 (2): 593–600. doi:10.1016/0003-2697(75)90472-8. ISSN 0003-2697. PMID 236687.

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