You are using an unsupported browser. Please upgrade your browser to a newer version to get the best experience on Human Metabolome Database.
Record Information
Version3.6
Creation Date2007-04-12 18:42:28 UTC
Update Date2016-02-11 01:07:19 UTC
HMDB IDHMDB05960
Secondary Accession NumbersNone
Metabolite Identification
Common NameD-Pipecolic acid
DescriptionD-Pipecolic acid is a normal human metabolite found in human biofluids. Normal adults excrete pipecolic acid primarily as the D-enantiomer even though it is present in the blood stream mainly as the L-enantiomer. It is believed that D-Pipecolic acid originates from the metabolism of intestinal bacteria and from dietary sources. High levels of D-Pipecolic acid are not found in plasma, but they are increased in urine of patients with chronic liver disease. (PMID: 6501504 , 6490790 , 11719476 , 8398594 ).
Structure
Thumb
Synonyms
ValueSource
(R)-Pipecolic acidChEBI
(R)-Piperidine-2-carboxylic acidChEBI
6-CARBOXYPIPERIDINEChEBI
(R)-PipecolateGenerator
(2R)-Piperidine-2-carboxylateGenerator
(R)-Piperidine-2-carboxylateGenerator
(+)-Pipecolic acidHMDB
(+)-Pipecolinic acidHMDB
(2R)-2-Piperidinecarboxylic acidHMDB
(R)-()-2-Piperidinecarboxylic acidHMDB
(R)-(+)-Pipecolic acidHMDB
(R)-2-Piperidinecarboxylic acidHMDB
(R)-Pipecolinic acidHMDB
D-(+)- Pipecolic acidHMDB
D-(+)-Pipecolic acidHMDB
D-HomoprolineHMDB
D-Pipecolinic acidHMDB
D-Piperidine-2-carboxylic acidHMDB
Chemical FormulaC6H11NO2
Average Molecular Weight129.157
Monoisotopic Molecular Weight129.078978601
IUPAC Name(2R)-piperidine-2-carboxylic acid
Traditional Name(+)-pipecolic acid
CAS Registry Number1723-00-8
SMILES
OC(=O)[C@H]1CCCCN1
InChI Identifier
InChI=1S/C6H11NO2/c8-6(9)5-3-1-2-4-7-5/h5,7H,1-4H2,(H,8,9)/t5-/m1/s1
InChI KeyInChIKey=HXEACLLIILLPRG-RXMQYKEDSA-N
Chemical Taxonomy
DescriptionThis compound belongs to the class of organic compounds known as d-alpha-amino acids. These are alpha amino acids which have the D-configuration of the alpha-carbon atom.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentD-alpha-amino acids
Alternative Parents
Substituents
  • D-alpha-amino acid
  • Piperidinecarboxylic acid
  • Piperidine
  • Azacycle
  • Organoheterocyclic compound
  • Secondary amine
  • Monocarboxylic acid or derivatives
  • Secondary aliphatic amine
  • Carboxylic acid
  • Hydrocarbon derivative
  • Organooxygen compound
  • Organonitrogen compound
  • Carbonyl group
  • Amine
  • Aliphatic heteromonocyclic compound
Molecular FrameworkAliphatic heteromonocyclic compounds
External Descriptors
Ontology
StatusDetected and Quantified
Origin
  • Endogenous
Biofunction
  • Protein synthesis, amino acid biosynthesis
ApplicationNot Available
Cellular locationsNot Available
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point266 - 268 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
Water Solubility158.0 mg/mLALOGPS
logP-2.2ALOGPS
logP-2.1ChemAxon
logS0.09ALOGPS
pKa (Strongest Acidic)2.06ChemAxon
pKa (Strongest Basic)10.39ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area49.33 Å2ChemAxon
Rotatable Bond Count1ChemAxon
Refractivity32.67 m3·mol-1ChemAxon
Polarizability13.47 Å3ChemAxon
Number of Rings1ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
SpectraNot Available
Biological Properties
Cellular LocationsNot Available
Biofluid Locations
  • Blood
Tissue LocationNot Available
PathwaysNot Available
Normal Concentrations
BiofluidStatusValueAgeSexConditionReferenceDetails
BloodDetected and Quantified0.11 +/- 0.10 uMAdult (>18 years old)BothNormal details
Abnormal Concentrations
BiofluidStatusValueAgeSexConditionReferenceDetails
BloodDetected and Quantified0.16 +/- 0.14 uMAdult (>18 years old)BothUremia details
BloodDetected and Quantified1.58 +/- 0.50 uMAdult (>18 years old)Both
Hepatic Encephalopathy
details
Associated Disorders and Diseases
Disease References
Hepatic encephalopathy
  1. Fujita T, Amuro Y, Hada T, Higashino K: Plasma levels of pipecolic acid, both L- and D-enantiomers, in patients with chronic liver diseases, especially hepatic encephalopathy. Clin Chim Acta. 1999 Sep;287(1-2):99-109. [10509899 ]
Uremia
  1. Fujita T, Amuro Y, Hada T, Higashino K: Plasma levels of pipecolic acid, both L- and D-enantiomers, in patients with chronic liver diseases, especially hepatic encephalopathy. Clin Chim Acta. 1999 Sep;287(1-2):99-109. [10509899 ]
Associated OMIM IDsNone
DrugBank IDNot Available
DrugBank Metabolite IDNot Available
Phenol Explorer Compound IDNot Available
Phenol Explorer Metabolite IDNot Available
FoodDB IDFDB023791
KNApSAcK IDNot Available
Chemspider ID643442
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
NuGOwiki LinkHMDB05960
Metagene LinkHMDB05960
METLIN IDNot Available
PubChem Compound736316
PDB IDCPI
ChEBI ID41582
References
Synthesis ReferenceFadel, Antoine; Lahrache, Nabil. An efficient synthesis of enantiomerically pure (R)-pipecolic acid, (S)-proline, and their N-alkylated derivatives. Journal of Organic Chemistry (2007), 72(5), 1780-1784.
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. Lam S: Stereoselective analysis of D and L dansyl amino acids as the mixed chelate copper(II) complexes by HPLC. J Chromatogr Sci. 1984 Sep;22(9):416-23. [6490790 ]
  2. Lam S, Azumaya H, Karmen A: High-performance liquid chromatography of amino acids in urine and cerebrospinal fluid. J Chromatogr. 1984 Oct 19;302:21-9. [6501504 ]
  3. Rashed MS, Al-Ahaidib LY, Aboul-Enein HY, Al-Amoudi M, Jacob M: Determination of L-pipecolic acid in plasma using chiral liquid chromatography-electrospray tandem mass spectrometry. Clin Chem. 2001 Dec;47(12):2124-30. [11719476 ]
  4. Armstrong DW, Gasper M, Lee SH, Zukowski J, Ercal N: D-amino acid levels in human physiological fluids. Chirality. 1993;5(5):375-8. [8398594 ]