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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2005-11-16 15:48:42 UTC
Update Date2023-02-21 17:14:51 UTC
HMDB IDHMDB0000453
Secondary Accession Numbers
  • HMDB00453
Metabolite Identification
Common Namedelta-Hexanolactone
Descriptiondelta-Hexanolactone is the lactone of 5-hydroxyhexanoic acid. Lactones are internal esters that exist in equilibrium between their closed (lactone) and open (hydroxy acid) forms in an aqueous environment. The lactone/hydroxy acid ratio at equilibrium is pH-dependent, with the closed form being favored at lower pH values, and can be greatly influenced by structural features of the lactone such as the ring size, substituents on the ring and the presence of double bonds within the ring. Many drugs and endogenous compounds are lactones or hydroxy acids and an enzyme capable of catalyzing the interchange between the open and closed forms in vivo could have pronounced effects upon their biological activity and/or distribution. delta-Hexanolactone is the substrate of paraoxonases (PON) in humans. Human PON1 hydrolyzes over 30 different lactones (cyclic esters) and catalyzes the reverse reaction (lactonization) of a broad range of hydroxy acids. Hydroxy acid lactonization or lactone hydrolysis is catalyzed until equilibrium between the open and closed forms is reached (PMID: 15772423 , 12963475 , 12963475 ).
Structure
Data?1676999691
Synonyms
ValueSource
Δ-hexanolactoneGenerator
Epsilon-CaprolactoneHMDB
(RS)-delta-HexalactoneHMDB
5-HexanolideHMDB
5-Hydroxy-hexanoateHMDB
5-Hydroxy-hexanoic acidHMDB
5-Hydroxy-hexanoic acid lactoneHMDB
5-HydroxyhexanoateHMDB
5-Hydroxyhexanoic acidHMDB
5-Hydroxyhexanoic acid lactoneHMDB
6-Methyl-D-valerolactoneHMDB
6-MethylvalerolactoneHMDB
delta-CaprolactoneHMDB
delta-HexalactoneHMDB
delta-HexanolideHMDB
delta-Methyl-delta-valerolactoneHMDB
HexanolactoneHMDB
Tetrahydro-6-methyl-2H-pyran-2-oneHMDB
Chemical FormulaC6H10O2
Average Molecular Weight114.1424
Monoisotopic Molecular Weight114.068079564
IUPAC Name6-methyloxan-2-one
Traditional Namehexanolactone
CAS Registry Number823-22-3
SMILES
CC1CCCC(=O)O1
InChI Identifier
InChI=1S/C6H10O2/c1-5-3-2-4-6(7)8-5/h5H,2-4H2,1H3
InChI KeyRZTOWFMDBDPERY-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as delta valerolactones. These are cyclic organic compounds containing an oxan-2- one moiety.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassLactones
Sub ClassDelta valerolactones
Direct ParentDelta valerolactones
Alternative Parents
Substituents
  • Delta_valerolactone
  • Delta valerolactone
  • Oxane
  • Carboxylic acid ester
  • Oxacycle
  • Monocarboxylic acid or derivatives
  • Carboxylic acid derivative
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Aliphatic heteromonocyclic compound
Molecular FrameworkAliphatic heteromonocyclic compounds
External DescriptorsNot Available
Ontology
Physiological effect
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting Point31.00 °C. @ 760.00 mm HgThe Good Scents Company Information System
Boiling Point110.00 to 112.00 °C. @ 15.00 mm HgThe Good Scents Company Information System
Water Solubility32190 mg/L @ 25 °C (est)The Good Scents Company Information System
LogP0.431 (est)The Good Scents Company Information System
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility24.1 g/LALOGPS
logP0.93ALOGPS
logP1.01ChemAxon
logS-0.68ALOGPS
pKa (Strongest Basic)-7ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area26.3 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity29.33 m³·mol⁻¹ChemAxon
Polarizability12.12 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+123.5131661259
DarkChem[M-H]-117.61231661259
AllCCS[M+H]+123.4532859911
AllCCS[M-H]-124.01532859911
DeepCCS[M+H]+131.27430932474
DeepCCS[M-H]-129.19330932474
DeepCCS[M-2H]-165.230932474
DeepCCS[M+Na]+139.60830932474
AllCCS[M+H]+123.532859911
AllCCS[M+H-H2O]+118.532859911
AllCCS[M+NH4]+128.132859911
AllCCS[M+Na]+129.432859911
AllCCS[M-H]-124.032859911
AllCCS[M+Na-2H]-126.632859911
AllCCS[M+HCOO]-129.432859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
delta-HexanolactoneCC1CCCC(=O)O11754.9Standard polar33892256
delta-HexanolactoneCC1CCCC(=O)O11008.9Standard non polar33892256
delta-HexanolactoneCC1CCCC(=O)O11056.3Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental GC-MSGC-MS Spectrum - delta-Hexanolactone EI-B (Non-derivatized)splash10-0006-9000000000-ec974c9bdaa10e2a40032017-09-12HMDB team, MONA, MassBankView Spectrum
Experimental GC-MSGC-MS Spectrum - delta-Hexanolactone EI-B (Non-derivatized)splash10-0006-9000000000-ec974c9bdaa10e2a40032018-05-18HMDB team, MONA, MassBankView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - delta-Hexanolactone GC-MS (Non-derivatized) - 70eV, Positivesplash10-0096-9000000000-110e65c1001acb0506102017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - delta-Hexanolactone GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental LC-MS/MSLC-MS/MS Spectrum - delta-Hexanolactone Quattro_QQQ 10V, Positive-QTOF (Annotated)splash10-014i-9000000000-36d0969790fae080b15e2012-07-24HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - delta-Hexanolactone Quattro_QQQ 25V, Positive-QTOF (Annotated)splash10-014i-9000000000-b68dc16317b5e5cd454a2012-07-24HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - delta-Hexanolactone Quattro_QQQ 40V, Positive-QTOF (Annotated)splash10-05fr-9100000000-74433d7dfd6ec3f654932012-07-24HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - delta-Hexanolactone EI-B (HITACHI M-80B) , Positive-QTOFsplash10-0006-9000000000-91819f2130833f0f1fb22012-08-31HMDB team, MONAView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - delta-Hexanolactone 10V, Positive-QTOFsplash10-014i-7900000000-e8d560d4b336564e2ccb2015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - delta-Hexanolactone 20V, Positive-QTOFsplash10-014i-9100000000-65742bbbb910102701f62015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - delta-Hexanolactone 40V, Positive-QTOFsplash10-0a6u-9000000000-1fe8eea9b95cd214ad442015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - delta-Hexanolactone 10V, Negative-QTOFsplash10-03di-2900000000-17f45c3a4167b21bd28e2015-04-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - delta-Hexanolactone 20V, Negative-QTOFsplash10-03di-9800000000-fa49d7a801b88ba622452015-04-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - delta-Hexanolactone 40V, Negative-QTOFsplash10-0006-9000000000-c440f6358807e3ad32272015-04-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - delta-Hexanolactone 10V, Positive-QTOFsplash10-014l-9100000000-385cf07fe667b5dcf42a2021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - delta-Hexanolactone 20V, Positive-QTOFsplash10-05mo-9000000000-af79a590764da1c7c98b2021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - delta-Hexanolactone 40V, Positive-QTOFsplash10-052f-9000000000-1ec743e53de2d7795d1d2021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - delta-Hexanolactone 10V, Negative-QTOFsplash10-03di-0900000000-58c4fccfebd32004befc2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - delta-Hexanolactone 20V, Negative-QTOFsplash10-08fr-9400000000-d0fcd442f030fde747232021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - delta-Hexanolactone 40V, Negative-QTOFsplash10-0a4l-9000000000-70de17ba043eec91698d2021-09-24Wishart LabView Spectrum

NMR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted 1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-29Wishart LabView Spectrum
Experimental 2D NMR[1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, H2O, experimental)2012-12-05Wishart LabView Spectrum

IR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+H]+)2023-02-03FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+)2023-02-03FELIX labView Spectrum
Biological Properties
Cellular Locations
  • Cytoplasm
Biospecimen Locations
  • Feces
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Normal
details
Abnormal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Colorectal cancer
details
Associated Disorders and Diseases
Disease References
Colorectal cancer
  1. Sinha R, Ahn J, Sampson JN, Shi J, Yu G, Xiong X, Hayes RB, Goedert JJ: Fecal Microbiota, Fecal Metabolome, and Colorectal Cancer Interrelations. PLoS One. 2016 Mar 25;11(3):e0152126. doi: 10.1371/journal.pone.0152126. eCollection 2016. [PubMed:27015276 ]
Associated OMIM IDs
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB008078
KNApSAcK IDC00054812
Chemspider ID12649
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN ID5442
PubChem Compound13204
PDB IDNot Available
ChEBI ID589927
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDrw1026381
References
Synthesis ReferenceMink, Daniel; Wolberg, Michael; Schuermann, Martin; Hilker, Iris. Chemoenzymic preparation of d-lactones. PCT Int. Appl. (2007), 40pp.
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. Draganov DI, Teiber JF, Speelman A, Osawa Y, Sunahara R, La Du BN: Human paraoxonases (PON1, PON2, and PON3) are lactonases with overlapping and distinct substrate specificities. J Lipid Res. 2005 Jun;46(6):1239-47. Epub 2005 Mar 16. [PubMed:15772423 ]
  2. Moser AB, Jones DS, Raymond GV, Moser HW: Plasma and red blood cell fatty acids in peroxisomal disorders. Neurochem Res. 1999 Feb;24(2):187-97. [PubMed:9972864 ]
  3. Teiber JF, Draganov DI, La Du BN: Lactonase and lactonizing activities of human serum paraoxonase (PON1) and rabbit serum PON3. Biochem Pharmacol. 2003 Sep 15;66(6):887-96. [PubMed:12963475 ]