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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2012-09-11 20:22:24 UTC
Update Date2022-03-07 02:54:29 UTC
HMDB IDHMDB0035394
Secondary Accession Numbers
  • HMDB35394
Metabolite Identification
Common Nameent-16-Kaurene
Descriptionent-16-Kaurene belongs to the class of organic compounds known as kaurane diterpenoids. These are diterpene alkaloids with a structure that is based on the kaurane skeleton. Kaurane is a tetracyclic compound that arises by cyclisation of a pimarane precursor followed by rearrangement. It possesses a [3,2,1]-bicyclic ring system with C15-C16 bridge connected to C13, forming the five-membered ring D. Based on a literature review very few articles have been published on ent-16-Kaurene.
Structure
Data?1563862713
Synonyms
ValueSource
(-)-Kaur-16-eneHMDB
(-)-KaureneHMDB
16-KaureneHMDB
a-PodocarpeneHMDB
a-PodocarpreneHMDB
Kauren-16-eneHMDB
KaureneMeSH
Chemical FormulaC20H32
Average Molecular Weight272.4681
Monoisotopic Molecular Weight272.250401024
IUPAC Name5,5,9-trimethyl-14-methylidenetetracyclo[11.2.1.0^{1,10}.0^{4,9}]hexadecane
Traditional Name5,5,9-trimethyl-14-methylidenetetracyclo[11.2.1.0^{1,10}.0^{4,9}]hexadecane
CAS Registry Number562-28-7
SMILES
CC1(C)CCCC2(C)C3CCC4CC3(CC4=C)CCC12
InChI Identifier
InChI=1S/C20H32/c1-14-12-20-11-8-16-18(2,3)9-5-10-19(16,4)17(20)7-6-15(14)13-20/h15-17H,1,5-13H2,2-4H3
InChI KeyONVABDHFQKWOSV-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as kaurane diterpenoids. These are diterpene alkaloids with a structure that is based on the kaurane skeleton. Kaurane is a tetracyclic compound that arises by cyclisation of a pimarane precursor followed by rearrangement. It possesses a [3,2,1]-bicyclic ring system with C15-C16 bridge connected to C13, forming the five-membered ring D.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassPrenol lipids
Sub ClassDiterpenoids
Direct ParentKaurane diterpenoids
Alternative Parents
Substituents
  • Kaurane diterpenoid
  • Branched unsaturated hydrocarbon
  • Polycyclic hydrocarbon
  • Cyclic olefin
  • Unsaturated aliphatic hydrocarbon
  • Unsaturated hydrocarbon
  • Olefin
  • Hydrocarbon
  • Aliphatic homopolycyclic compound
Molecular FrameworkAliphatic homopolycyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting Point50 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility0.0002 g/LALOGPS
logP5.14ALOGPS
logP5.62ChemAxon
logS-6.1ALOGPS
Physiological Charge0ChemAxon
Hydrogen Acceptor Count0ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area0 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity85.65 m³·mol⁻¹ChemAxon
Polarizability34.39 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityYesChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+164.32631661259
DarkChem[M-H]-163.81531661259
DeepCCS[M-2H]-204.31930932474
DeepCCS[M+Na]+179.88430932474
AllCCS[M+H]+171.632859911
AllCCS[M+H-H2O]+168.532859911
AllCCS[M+NH4]+174.632859911
AllCCS[M+Na]+175.432859911
AllCCS[M-H]-179.932859911
AllCCS[M+Na-2H]-180.132859911
AllCCS[M+HCOO]-180.432859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
ent-16-KaureneCC1(C)CCCC2(C)C3CCC4CC3(CC4=C)CCC122392.0Standard polar33892256
ent-16-KaureneCC1(C)CCCC2(C)C3CCC4CC3(CC4=C)CCC121995.6Standard non polar33892256
ent-16-KaureneCC1(C)CCCC2(C)C3CCC4CC3(CC4=C)CCC122042.3Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - ent-16-Kaurene GC-MS (Non-derivatized) - 70eV, Positivesplash10-052f-0590000000-d4a49f5b8e7a349da65c2017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - ent-16-Kaurene GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - ent-16-Kaurene GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 10V, Positive-QTOFsplash10-00di-0190000000-abdc738a9b2f218976ac2015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 20V, Positive-QTOFsplash10-00di-2590000000-3e4e129c94dc35569f7e2015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 40V, Positive-QTOFsplash10-054p-5590000000-2577c99768bcfcaeccc32015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 10V, Positive-QTOFsplash10-00di-0190000000-abdc738a9b2f218976ac2015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 20V, Positive-QTOFsplash10-00di-2590000000-3e4e129c94dc35569f7e2015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 40V, Positive-QTOFsplash10-054p-5590000000-2577c99768bcfcaeccc32015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 10V, Positive-QTOFsplash10-00di-0190000000-abdc738a9b2f218976ac2015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 20V, Positive-QTOFsplash10-00di-2590000000-3e4e129c94dc35569f7e2015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 40V, Positive-QTOFsplash10-054p-5590000000-2577c99768bcfcaeccc32015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 10V, Negative-QTOFsplash10-00di-0090000000-15e1f4fd91ad56265ebc2015-04-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 20V, Negative-QTOFsplash10-00di-0090000000-8db7a91ee810128c34f32015-04-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 40V, Negative-QTOFsplash10-0a4i-0290000000-7fa587b9ad43aeb3c1aa2015-04-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 10V, Negative-QTOFsplash10-00di-0090000000-15e1f4fd91ad56265ebc2015-04-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 20V, Negative-QTOFsplash10-00di-0090000000-8db7a91ee810128c34f32015-04-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 40V, Negative-QTOFsplash10-0a4i-0290000000-7fa587b9ad43aeb3c1aa2015-04-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 10V, Negative-QTOFsplash10-00di-0090000000-15e1f4fd91ad56265ebc2015-04-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 20V, Negative-QTOFsplash10-00di-0090000000-8db7a91ee810128c34f32015-04-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 40V, Negative-QTOFsplash10-0a4i-0290000000-7fa587b9ad43aeb3c1aa2015-04-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 10V, Negative-QTOFsplash10-00di-0090000000-4c81b77566a3712a29802021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 20V, Negative-QTOFsplash10-00di-0090000000-4c81b77566a3712a29802021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 40V, Negative-QTOFsplash10-00di-0090000000-6ef1704c0d46b8c3b1f62021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 10V, Positive-QTOFsplash10-00di-0090000000-f6426afcdbf07932d6f12021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 20V, Positive-QTOFsplash10-00di-1590000000-7cf8cc25cf2e2d16fe052021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-16-Kaurene 40V, Positive-QTOFsplash10-00bc-5910000000-0b582d08bd1f58f45de32021-09-22Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Extracellular
  • Membrane
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 IDFDB014069
KNApSAcK IDNot Available
Chemspider ID454172
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound520687
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Lin C, Zhao Z: [Structure of rubescensin E]. Zhongguo Zhong Yao Za Zhi. 1997 Oct;22(10):612-3, 640. [PubMed:11038929 ]
  2. Simons K, Toomre D: Lipid rafts and signal transduction. Nat Rev Mol Cell Biol. 2000 Oct;1(1):31-9. [PubMed:11413487 ]
  3. Watson AD: Thematic review series: systems biology approaches to metabolic and cardiovascular disorders. Lipidomics: a global approach to lipid analysis in biological systems. J Lipid Res. 2006 Oct;47(10):2101-11. Epub 2006 Aug 10. [PubMed:16902246 ]
  4. Sethi JK, Vidal-Puig AJ: Thematic review series: adipocyte biology. Adipose tissue function and plasticity orchestrate nutritional adaptation. J Lipid Res. 2007 Jun;48(6):1253-62. Epub 2007 Mar 20. [PubMed:17374880 ]
  5. Lingwood D, Simons K: Lipid rafts as a membrane-organizing principle. Science. 2010 Jan 1;327(5961):46-50. doi: 10.1126/science.1174621. [PubMed:20044567 ]
  6. (). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .
  7. Gunstone, Frank D., John L. Harwood, and Albert J. Dijkstra (2007). The lipid handbook with CD-ROM. CRC Press.