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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2009-04-06 16:20:04 UTC
Update Date2023-02-21 17:17:40 UTC
HMDB IDHMDB0012151
Secondary Accession Numbers
  • HMDB12151
Metabolite Identification
Common Name2-Keto-6-aminocaproate
Description2-Keto-6-aminocaproate is an intermediate in lysine degradation and can be formed from L-lysine. L-Lysine is an essential amino-acid that is a necessary building block for all protein in the body. L-Lysine plays a major role in calcium absorption; building muscle protein; recovering from surgery or sports injuries; and the body's production of hormones, enzymes, and antibodies. L-Lysine can be converted to 2-keto-6-aminocaproate via the enzyme L-lysine alpha-oxidase. 2-Keto-6-aminocaproate can spontaneously decarboxylate to 5-aminovalerate in the presence of the reaction product, hydrogen peroxide. It can also be spontaneously converted in solution to its cyclic form delta-piperideine-2-carboxylate. This has been demonstrated in vitro in the presence of catalase, which splits hydrogen peroxide.
Structure
Data?1676999860
Synonyms
ValueSource
2-oxo-6-AminocaproateChEBI
6-Amino-2-oxohexanoateChEBI
2-oxo-6-Aminocaproic acidGenerator
6-Amino-2-oxohexanoic acidGenerator
2-Keto-6-aminocaproic acidGenerator
2-keto-6-amino-CaproateHMDB
2-keto-6-amino-Caproic acidHMDB
2-oxo-6-AminohexanoateHMDB
2-oxo-6-Aminohexanoic acidHMDB
alpha-keto-epsilon-AminocaproateHMDB
alpha-keto-epsilon-Aminocaproic acidHMDB
alpha-keto-epsilon-AminohexanoateHMDB
alpha-keto-epsilon-Aminohexanoic acidHMDB
alpha-KetolysineHMDB
Chemical FormulaC6H11NO3
Average Molecular Weight145.1564
Monoisotopic Molecular Weight145.073893223
IUPAC Name6-amino-2-oxohexanoic acid
Traditional Name6-amino-2-oxohexanoic acid
CAS Registry NumberNot Available
SMILES
NCCCCC(=O)C(O)=O
InChI Identifier
InChI=1S/C6H11NO3/c7-4-2-1-3-5(8)6(9)10/h1-4,7H2,(H,9,10)
InChI KeyGWENQMVPLJAMAE-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as medium-chain keto acids and derivatives. These are keto acids with a 6 to 12 carbon atoms long side chain.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassKeto acids and derivatives
Sub ClassMedium-chain keto acids and derivatives
Direct ParentMedium-chain keto acids and derivatives
Alternative Parents
Substituents
  • Medium-chain keto acid
  • Amino fatty acid
  • Alpha-keto acid
  • Fatty acyl
  • Alpha-hydroxy ketone
  • Amino acid
  • Amino acid or derivatives
  • Ketone
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Organooxygen compound
  • Organonitrogen compound
  • Primary aliphatic amine
  • Organic oxygen compound
  • Organopnictogen compound
  • Carbonyl group
  • Organic nitrogen compound
  • Organic oxide
  • Amine
  • Primary amine
  • Hydrocarbon derivative
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility17.1 g/LALOGPS
logP-2.3ALOGPS
logP-2.2ChemAxon
logS-0.93ALOGPS
pKa (Strongest Acidic)3.24ChemAxon
pKa (Strongest Basic)10.01ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area80.39 ŲChemAxon
Rotatable Bond Count5ChemAxon
Refractivity35.4 m³·mol⁻¹ChemAxon
Polarizability14.62 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+132.31331661259
DarkChem[M-H]-129.14231661259
DeepCCS[M+H]+132.15530932474
DeepCCS[M-H]-129.38930932474
DeepCCS[M-2H]-165.89630932474
DeepCCS[M+Na]+140.67930932474
AllCCS[M+H]+132.632859911
AllCCS[M+H-H2O]+128.632859911
AllCCS[M+NH4]+136.432859911
AllCCS[M+Na]+137.532859911
AllCCS[M-H]-129.532859911
AllCCS[M+Na-2H]-131.732859911
AllCCS[M+HCOO]-134.132859911

Predicted Retention Times

Underivatized

Chromatographic MethodRetention TimeReference
Measured using a Waters Acquity ultraperformance liquid chromatography (UPLC) ethylene-bridged hybrid (BEH) C18 column (100 mm × 2.1 mm; 1.7 μmparticle diameter). Predicted by Afia on May 17, 2022. Predicted by Afia on May 17, 2022.1.38 minutes32390414
Predicted by Siyang on May 30, 20228.8163 minutes33406817
Predicted by Siyang using ReTip algorithm on June 8, 20226.29 minutes32390414
AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid314.4 seconds40023050
Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid530.9 seconds40023050
Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid283.8 seconds40023050
Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid69.6 seconds40023050
Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid172.6 seconds40023050
RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid64.1 seconds40023050
Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid249.4 seconds40023050
BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid242.6 seconds40023050
HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate)778.4 seconds40023050
UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid590.9 seconds40023050
BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid51.3 seconds40023050
UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid649.9 seconds40023050
SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid164.6 seconds40023050
RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid190.2 seconds40023050
MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate809.4 seconds40023050
KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA493.8 seconds40023050
Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water307.9 seconds40023050

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
2-Keto-6-aminocaproateNCCCCC(=O)C(O)=O2164.9Standard polar33892256
2-Keto-6-aminocaproateNCCCCC(=O)C(O)=O1895.6Standard non polar33892256
2-Keto-6-aminocaproateNCCCCC(=O)C(O)=O1349.0Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
2-Keto-6-aminocaproate,1TMS,isomer #1C[Si](C)(C)OC(=O)C(=O)CCCCN1426.6Semi standard non polar33892256
2-Keto-6-aminocaproate,1TMS,isomer #2C[Si](C)(C)OC(=CCCCN)C(=O)O1541.5Semi standard non polar33892256
2-Keto-6-aminocaproate,1TMS,isomer #3C[Si](C)(C)NCCCCC(=O)C(=O)O1556.3Semi standard non polar33892256
2-Keto-6-aminocaproate,2TMS,isomer #1C[Si](C)(C)OC(=O)C(=CCCCN)O[Si](C)(C)C1566.8Semi standard non polar33892256
2-Keto-6-aminocaproate,2TMS,isomer #1C[Si](C)(C)OC(=O)C(=CCCCN)O[Si](C)(C)C1592.1Standard non polar33892256
2-Keto-6-aminocaproate,2TMS,isomer #1C[Si](C)(C)OC(=O)C(=CCCCN)O[Si](C)(C)C2097.7Standard polar33892256
2-Keto-6-aminocaproate,2TMS,isomer #2C[Si](C)(C)NCCCCC(=O)C(=O)O[Si](C)(C)C1595.5Semi standard non polar33892256
2-Keto-6-aminocaproate,2TMS,isomer #2C[Si](C)(C)NCCCCC(=O)C(=O)O[Si](C)(C)C1661.2Standard non polar33892256
2-Keto-6-aminocaproate,2TMS,isomer #2C[Si](C)(C)NCCCCC(=O)C(=O)O[Si](C)(C)C1782.2Standard polar33892256
2-Keto-6-aminocaproate,2TMS,isomer #3C[Si](C)(C)NCCCC=C(O[Si](C)(C)C)C(=O)O1706.4Semi standard non polar33892256
2-Keto-6-aminocaproate,2TMS,isomer #3C[Si](C)(C)NCCCC=C(O[Si](C)(C)C)C(=O)O1761.3Standard non polar33892256
2-Keto-6-aminocaproate,2TMS,isomer #3C[Si](C)(C)NCCCC=C(O[Si](C)(C)C)C(=O)O1988.0Standard polar33892256
2-Keto-6-aminocaproate,2TMS,isomer #4C[Si](C)(C)N(CCCCC(=O)C(=O)O)[Si](C)(C)C1790.2Semi standard non polar33892256
2-Keto-6-aminocaproate,2TMS,isomer #4C[Si](C)(C)N(CCCCC(=O)C(=O)O)[Si](C)(C)C1703.1Standard non polar33892256
2-Keto-6-aminocaproate,2TMS,isomer #4C[Si](C)(C)N(CCCCC(=O)C(=O)O)[Si](C)(C)C2074.1Standard polar33892256
2-Keto-6-aminocaproate,3TMS,isomer #1C[Si](C)(C)NCCCC=C(O[Si](C)(C)C)C(=O)O[Si](C)(C)C1708.3Semi standard non polar33892256
2-Keto-6-aminocaproate,3TMS,isomer #1C[Si](C)(C)NCCCC=C(O[Si](C)(C)C)C(=O)O[Si](C)(C)C1752.8Standard non polar33892256
2-Keto-6-aminocaproate,3TMS,isomer #1C[Si](C)(C)NCCCC=C(O[Si](C)(C)C)C(=O)O[Si](C)(C)C1717.9Standard polar33892256
2-Keto-6-aminocaproate,3TMS,isomer #2C[Si](C)(C)OC(=O)C(=O)CCCCN([Si](C)(C)C)[Si](C)(C)C1826.5Semi standard non polar33892256
2-Keto-6-aminocaproate,3TMS,isomer #2C[Si](C)(C)OC(=O)C(=O)CCCCN([Si](C)(C)C)[Si](C)(C)C1751.2Standard non polar33892256
2-Keto-6-aminocaproate,3TMS,isomer #2C[Si](C)(C)OC(=O)C(=O)CCCCN([Si](C)(C)C)[Si](C)(C)C1756.0Standard polar33892256
2-Keto-6-aminocaproate,3TMS,isomer #3C[Si](C)(C)OC(=CCCCN([Si](C)(C)C)[Si](C)(C)C)C(=O)O1912.1Semi standard non polar33892256
2-Keto-6-aminocaproate,3TMS,isomer #3C[Si](C)(C)OC(=CCCCN([Si](C)(C)C)[Si](C)(C)C)C(=O)O1853.6Standard non polar33892256
2-Keto-6-aminocaproate,3TMS,isomer #3C[Si](C)(C)OC(=CCCCN([Si](C)(C)C)[Si](C)(C)C)C(=O)O1936.9Standard polar33892256
2-Keto-6-aminocaproate,4TMS,isomer #1C[Si](C)(C)OC(=O)C(=CCCCN([Si](C)(C)C)[Si](C)(C)C)O[Si](C)(C)C1876.5Semi standard non polar33892256
2-Keto-6-aminocaproate,4TMS,isomer #1C[Si](C)(C)OC(=O)C(=CCCCN([Si](C)(C)C)[Si](C)(C)C)O[Si](C)(C)C1834.9Standard non polar33892256
2-Keto-6-aminocaproate,4TMS,isomer #1C[Si](C)(C)OC(=O)C(=CCCCN([Si](C)(C)C)[Si](C)(C)C)O[Si](C)(C)C1703.9Standard polar33892256
2-Keto-6-aminocaproate,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC(=O)C(=O)CCCCN1663.2Semi standard non polar33892256
2-Keto-6-aminocaproate,1TBDMS,isomer #2CC(C)(C)[Si](C)(C)OC(=CCCCN)C(=O)O1774.5Semi standard non polar33892256
2-Keto-6-aminocaproate,1TBDMS,isomer #3CC(C)(C)[Si](C)(C)NCCCCC(=O)C(=O)O1817.9Semi standard non polar33892256
2-Keto-6-aminocaproate,2TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC(=O)C(=CCCCN)O[Si](C)(C)C(C)(C)C2043.2Semi standard non polar33892256
2-Keto-6-aminocaproate,2TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC(=O)C(=CCCCN)O[Si](C)(C)C(C)(C)C1949.9Standard non polar33892256
2-Keto-6-aminocaproate,2TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC(=O)C(=CCCCN)O[Si](C)(C)C(C)(C)C2202.6Standard polar33892256
2-Keto-6-aminocaproate,2TBDMS,isomer #2CC(C)(C)[Si](C)(C)NCCCCC(=O)C(=O)O[Si](C)(C)C(C)(C)C2076.2Semi standard non polar33892256
2-Keto-6-aminocaproate,2TBDMS,isomer #2CC(C)(C)[Si](C)(C)NCCCCC(=O)C(=O)O[Si](C)(C)C(C)(C)C2026.9Standard non polar33892256
2-Keto-6-aminocaproate,2TBDMS,isomer #2CC(C)(C)[Si](C)(C)NCCCCC(=O)C(=O)O[Si](C)(C)C(C)(C)C2026.0Standard polar33892256
2-Keto-6-aminocaproate,2TBDMS,isomer #3CC(C)(C)[Si](C)(C)NCCCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O2165.5Semi standard non polar33892256
2-Keto-6-aminocaproate,2TBDMS,isomer #3CC(C)(C)[Si](C)(C)NCCCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O2104.9Standard non polar33892256
2-Keto-6-aminocaproate,2TBDMS,isomer #3CC(C)(C)[Si](C)(C)NCCCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O2158.9Standard polar33892256
2-Keto-6-aminocaproate,2TBDMS,isomer #4CC(C)(C)[Si](C)(C)N(CCCCC(=O)C(=O)O)[Si](C)(C)C(C)(C)C2235.9Semi standard non polar33892256
2-Keto-6-aminocaproate,2TBDMS,isomer #4CC(C)(C)[Si](C)(C)N(CCCCC(=O)C(=O)O)[Si](C)(C)C(C)(C)C2100.6Standard non polar33892256
2-Keto-6-aminocaproate,2TBDMS,isomer #4CC(C)(C)[Si](C)(C)N(CCCCC(=O)C(=O)O)[Si](C)(C)C(C)(C)C2180.1Standard polar33892256
2-Keto-6-aminocaproate,3TBDMS,isomer #1CC(C)(C)[Si](C)(C)NCCCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C2352.5Semi standard non polar33892256
2-Keto-6-aminocaproate,3TBDMS,isomer #1CC(C)(C)[Si](C)(C)NCCCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C2241.5Standard non polar33892256
2-Keto-6-aminocaproate,3TBDMS,isomer #1CC(C)(C)[Si](C)(C)NCCCC=C(O[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C2117.8Standard polar33892256
2-Keto-6-aminocaproate,3TBDMS,isomer #2CC(C)(C)[Si](C)(C)OC(=O)C(=O)CCCCN([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2477.9Semi standard non polar33892256
2-Keto-6-aminocaproate,3TBDMS,isomer #2CC(C)(C)[Si](C)(C)OC(=O)C(=O)CCCCN([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2337.0Standard non polar33892256
2-Keto-6-aminocaproate,3TBDMS,isomer #2CC(C)(C)[Si](C)(C)OC(=O)C(=O)CCCCN([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2132.1Standard polar33892256
2-Keto-6-aminocaproate,3TBDMS,isomer #3CC(C)(C)[Si](C)(C)OC(=CCCCN([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(=O)O2542.7Semi standard non polar33892256
2-Keto-6-aminocaproate,3TBDMS,isomer #3CC(C)(C)[Si](C)(C)OC(=CCCCN([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(=O)O2385.8Standard non polar33892256
2-Keto-6-aminocaproate,3TBDMS,isomer #3CC(C)(C)[Si](C)(C)OC(=CCCCN([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(=O)O2235.2Standard polar33892256
2-Keto-6-aminocaproate,4TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC(=O)C(=CCCCN([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C2741.2Semi standard non polar33892256
2-Keto-6-aminocaproate,4TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC(=O)C(=CCCCN([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C2491.3Standard non polar33892256
2-Keto-6-aminocaproate,4TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC(=O)C(=CCCCN([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C2181.5Standard polar33892256
Spectra
Biological Properties
Cellular LocationsNot Available
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB028808
KNApSAcK IDNot Available
Chemspider ID388981
KEGG Compound IDC03239
BioCyc ID2-KETO-6-AMINO-CAPROATE
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound439954
PDB IDNot Available
ChEBI ID17534
Food Biomarker OntologyNot Available
VMH ID6A2OHXNT
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available