Record Information
Version1.0
Creation Date2016-09-30 22:47:54 UTC
Update Date2020-05-11 22:29:49 UTC
MCDB ID BMDB0001645
Secondary Accession Numbers
  • BMDB01645
Metabolite Identification
Common NameL-Norleucine
DescriptionNorleucine, also known as L-aminohexanoate or caprine, belongs to the class of organic compounds known as l-alpha-amino acids. These are alpha amino acids which have the L-configuration of the alpha-carbon atom. Thus, norleucine is considered to be a fatty acid lipid molecule. Norleucine is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. Norleucine exists in all eukaryotes, ranging from yeast to humans.
Structure
Thumb
Synonyms
ValueSource
(S)-2-Aminohexanoic acidChEBI
2-Aminocaproic acidChEBI
2-Aminohexanoic acidChEBI
alpha-Aminocaproic acidChEBI
CaprineChEBI
GlycoleucineChEBI
L(+)-NorleucineChEBI
L-(+)-NorleucineChEBI
L-2-AminohexanoateChEBI
L-2-Aminohexanoic acidChEBI
L-AminohexanoateChEBI
L-Aminohexanoic acidChEBI
NleChEBI
NorleucineChEBI
(S)-2-AminohexanoateGenerator
2-AminocaproateGenerator
2-AminohexanoateGenerator
a-AminocaproateGenerator
a-Aminocaproic acidGenerator
alpha-AminocaproateGenerator
Α-aminocaproateGenerator
Α-aminocaproic acidGenerator
(S)-2-amino-HexanoateHMDB
(S)-2-amino-Hexanoic acidHMDB
(S)-AminohexanoateHMDB
(S)-Aminohexanoic acidHMDB
(S)-NorleucineHMDB
L-Isomer norleucineMeSH, HMDB
Norleucine, L isomerMeSH, HMDB
Norleucine, L-isomerMeSH, HMDB
2S-Amino-hexanoateGenerator, HMDB
Chemical FormulaC6H13NO2
Average Molecular Weight131.1729
Monoisotopic Molecular Weight131.094628665
IUPAC Name(2S)-2-aminohexanoic acid
Traditional Namecaprine
CAS Registry Number327-57-1
SMILES
CCCC[C@H](N)C(O)=O
InChI Identifier
InChI=1S/C6H13NO2/c1-2-3-4-5(7)6(8)9/h5H,2-4,7H2,1H3,(H,8,9)/t5-/m0/s1
InChI KeyLRQKBLKVPFOOQJ-YFKPBYRVSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as l-alpha-amino acids. These are alpha amino acids which have the L-configuration of the alpha-carbon atom.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentL-alpha-amino acids
Alternative Parents
Substituents
  • L-alpha-amino acid
  • Medium-chain fatty acid
  • Amino fatty acid
  • Fatty acid
  • Fatty acyl
  • Amino acid
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Organic oxide
  • Organopnictogen compound
  • Organic oxygen compound
  • Primary amine
  • Organooxygen compound
  • Organonitrogen compound
  • Primary aliphatic amine
  • Carbonyl group
  • Organic nitrogen compound
  • Amine
  • Hydrocarbon derivative
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water Solubility12 mg/mL at 25 °CNot Available
LogP-1.53HANSCH,C ET AL. (1995)
Predicted Properties
PropertyValueSource
logP-1.7ALOGPS
logP-1.4ChemAxon
logS-0.17ALOGPS
pKa (Strongest Acidic)2.79ChemAxon
pKa (Strongest Basic)9.53ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area63.32 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity34.22 m³·mol⁻¹ChemAxon
Polarizability14.46 ųChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectrum TypeDescriptionSplash KeyDeposition DateView
GC-MSGC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (2 TMS)splash10-0a4i-0900000000-b9e660e9ed085e0a27562014-06-16View Spectrum
GC-MSGC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (2 TMS)splash10-0a4i-0900000000-363d31fc4a3b15b97b492014-06-16View Spectrum
GC-MSGC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (Non-derivatized)splash10-000i-9200000000-786e1c364f918e406c7f2014-06-16View Spectrum
GC-MSGC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (Non-derivatized)splash10-0a4i-0900000000-7c99693c3cc849290ecd2014-06-16View Spectrum
GC-MSGC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (2 TMS)splash10-05fr-8900000000-3cf84aa3585ea0262b9a2014-06-16View Spectrum
GC-MSGC-MS Spectrum - GC-MS (1 TMS)splash10-000i-9200000000-d5ef9dd4b8be3c55a58f2014-06-16View Spectrum
GC-MSGC-MS Spectrum - GC-MS (2 TMS)splash10-0a4i-0900000000-df2e472e3bd858c871d02014-06-16View Spectrum
GC-MSGC-MS Spectrum - GC-MS (3 TMS)splash10-001i-0391000000-a01428088011045cef832014-06-16View Spectrum
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-000i-9100000000-1fddf89f6ec7f4b5cfbe2017-09-12View Spectrum
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-0a4i-0910000000-5eb6c8571ebbad86fac92017-09-12View Spectrum
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-0a4i-0900000000-b9e660e9ed085e0a27562017-09-12View Spectrum
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-0a4i-0900000000-363d31fc4a3b15b97b492017-09-12View Spectrum
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-000i-9200000000-786e1c364f918e406c7f2017-09-12View Spectrum
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-05fr-8900000000-3cf84aa3585ea0262b9a2017-09-12View Spectrum
GC-MSGC-MS Spectrum - GC-MS (Non-derivatized)splash10-0a4i-0900000000-df2e472e3bd858c871d02017-09-12View Spectrum
GC-MSGC-MS Spectrum - GC-MS (Non-derivatized)splash10-001i-0391000000-a01428088011045cef832017-09-12View Spectrum
GC-MSGC-MS Spectrum - GC-MS (Non-derivatized)splash10-000i-9200000000-d5ef9dd4b8be3c55a58f2017-09-12View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-00bl-9000000000-201d4196a590a77910e62016-09-22View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (1 TMS) - 70eV, Positivesplash10-00dl-9400000000-10c311ca7a06deeb972a2017-10-06View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12View Spectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)splash10-000i-9100000000-b124c751376d5dfa51a52012-07-24View Spectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)splash10-00ku-9000000000-734efe7e83b2a5a46f002012-07-24View Spectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)splash10-0006-9000000000-ac9b87f3b366d13101132012-07-24View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 10V, Negativesplash10-001i-0900000000-6cc58ea175a3d14928682012-08-31View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 20V, Negativesplash10-001i-0900000000-95aa6e4bfc42834399832012-08-31View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 30V, Negativesplash10-004i-3900000000-b75779678a92cd599f0c2012-08-31View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 10V, Positivesplash10-0019-9800000000-ee386f888d7ea62be2552012-08-31View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 20V, Positivesplash10-000i-9000000000-93d53170f5b18b6e157c2012-08-31View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 30V, Positivesplash10-00kr-9000000000-8abbc9ef83fc8fdd973c2012-08-31View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 40V, Positivesplash10-0006-9000000000-39712cf46e67bc1458fb2012-08-31View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 50V, Positivesplash10-0006-9000000000-219a42048a733f3d5a232012-08-31View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) , Positivesplash10-000i-9000000000-2d321cebc7950b90d6b12012-08-31View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) 30V, Positivesplash10-00kr-9200000000-916e946734d7c51678df2012-08-31View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) , Negativesplash10-001i-0900000000-bc56a19fa8c09e2265432012-08-31View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-001i-0900000000-6cc58ea175a3d14928682017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-001i-0900000000-95aa6e4bfc42834399832017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-004i-3900000000-b75779678a92cd599f0c2017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , negativesplash10-001i-0900000000-bc56a19fa8c09e2265432017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - , negativesplash10-001i-0900000000-092c22a76d9d673f6ef92017-09-14View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0019-9600000000-d20978980da1f4122a432016-09-12View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-000i-9000000000-e402468856ebe93f56322016-09-12View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a4l-9000000000-323f487cfafb31db8c072016-09-12View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-001i-1900000000-87cdc1a1d627629c2d672016-09-12View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-001i-6900000000-7bd938134b1765555ef22016-09-12View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-00di-9000000000-721ed018b3aaa7a7d07d2016-09-12View Spectrum
1D NMR1H NMR Spectrum (1D, 500 MHz, H2O, experimental)Not Available2012-12-04View Spectrum
1D NMR1H NMR Spectrum (1D, D2O, experimental)Not Available2016-10-22View Spectrum
1D NMR13C NMR Spectrum (1D, D2O, experimental)Not Available2016-10-22View Spectrum
1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)Not Available2021-09-29View Spectrum
1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)Not Available2021-09-29View Spectrum
1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)Not Available2021-09-29View Spectrum
1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)Not Available2021-09-29View Spectrum
1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)Not Available2021-09-29View Spectrum
1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)Not Available2021-09-29View Spectrum
1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)Not Available2021-09-29View Spectrum
1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)Not Available2021-09-29View Spectrum
1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)Not Available2021-09-29View Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)Not Available2021-09-29View Spectrum
1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)Not Available2021-09-29View Spectrum
1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)Not Available2021-09-29View Spectrum
1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)Not Available2021-09-29View Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)Not Available2021-09-29View Spectrum
1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)Not Available2021-09-29View Spectrum
1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)Not Available2021-09-29View Spectrum
1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)Not Available2021-09-29View Spectrum
1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)Not Available2021-09-29View Spectrum
1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)Not Available2021-09-29View Spectrum
1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)Not Available2021-09-29View Spectrum
2D NMR[1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, H2O, experimental)Not Available2012-12-05View Spectrum
Concentrations
StatusValueReferenceDetails
Detected but not QuantifiedNot Applicable details
HMDB IDHMDB0001645
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB022699
KNApSAcK IDC00053319
Chemspider ID19964
KEGG Compound IDC01933
BioCyc IDL-2-AMINOHEXANOATE
BiGG IDNot Available
Wikipedia LinkNorleucine
METLIN ID6334
PubChem Compound21236
PDB IDNot Available
ChEBI ID18347
References
Synthesis ReferenceChibata, Ichiro; Kizumi, Masahiko; Sugiura, Masataka. Fermentative production of L-norleucine. Jpn. Kokai Tokkyo Koho (1977), 4 pp.
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. Sun HZ, Shi K, Wu XH, Xue MY, Wei ZH, Liu JX, Liu HY: Lactation-related metabolic mechanism investigated based on mammary gland metabolomics and 4 biofluids' metabolomics relationships in dairy cows. BMC Genomics. 2017 Dec 2;18(1):936. doi: 10.1186/s12864-017-4314-1. [PubMed:29197344 ]