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Version5.0
StatusExpected but not Quantified
Creation Date2012-09-11 21:51:50 UTC
Update Date2022-03-07 02:55:01 UTC
HMDB IDHMDB0036697
Secondary Accession Numbers
  • HMDB36697
Metabolite Identification
Common Nameent-6,16-Kauradien-19-oic acid
Descriptionent-6,16-Kauradien-19-oic acid 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. ent-6,16-Kauradien-19-oic acid is a weakly acidic compound (based on its pKa).
Structure
Data?1563862911
Synonyms
ValueSource
ent-6,16-Kauradien-19-OateGenerator
5,9-Dimethyl-14-methylidenetetracyclo[11.2.1.0¹,¹⁰.0⁴,⁹]hexadec-2-ene-5-carboxylateGenerator
Chemical FormulaC20H28O2
Average Molecular Weight300.4351
Monoisotopic Molecular Weight300.20893014
IUPAC Name5,9-dimethyl-14-methylidenetetracyclo[11.2.1.0¹,¹⁰.0⁴,⁹]hexadec-2-ene-5-carboxylic acid
Traditional Name5,9-dimethyl-14-methylidenetetracyclo[11.2.1.0¹,¹⁰.0⁴,⁹]hexadec-2-ene-5-carboxylic acid
CAS Registry Number77280-78-5
SMILES
CC12CCCC(C)(C1C=CC13CC(CCC21)C(=C)C3)C(O)=O
InChI Identifier
InChI=1S/C20H28O2/c1-13-11-20-10-7-15-18(2,16(20)6-5-14(13)12-20)8-4-9-19(15,3)17(21)22/h7,10,14-16H,1,4-6,8-9,11-12H2,2-3H3,(H,21,22)
InChI KeyCZTZKVUEUYRGFD-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 ParentsNot Available
SubstituentsNot Available
Molecular FrameworkAliphatic homopolycyclic compounds
External DescriptorsNot Available
Ontology
Physiological effectNot Available
Disposition
Process
Role
Physical Properties
StateNot Available
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 Solubility0.00077 g/LALOGPS
logP3.89ALOGPS
logP4.45ChemAxon
logS-5.6ALOGPS
pKa (Strongest Acidic)4.8ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area37.3 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity88.48 m³·mol⁻¹ChemAxon
Polarizability34.85 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+171.73331661259
DarkChem[M-H]-170.6931661259
DeepCCS[M-2H]-209.85430932474
DeepCCS[M+Na]+185.41930932474
AllCCS[M+H]+175.432859911
AllCCS[M+H-H2O]+172.332859911
AllCCS[M+NH4]+178.232859911
AllCCS[M+Na]+179.032859911
AllCCS[M-H]-181.732859911
AllCCS[M+Na-2H]-181.832859911
AllCCS[M+HCOO]-181.932859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
ent-6,16-Kauradien-19-oic acidCC12CCCC(C)(C1C=CC13CC(CCC21)C(=C)C3)C(O)=O3222.3Standard polar33892256
ent-6,16-Kauradien-19-oic acidCC12CCCC(C)(C1C=CC13CC(CCC21)C(=C)C3)C(O)=O2321.2Standard non polar33892256
ent-6,16-Kauradien-19-oic acidCC12CCCC(C)(C1C=CC13CC(CCC21)C(=C)C3)C(O)=O2452.6Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
ent-6,16-Kauradien-19-oic acid,1TMS,isomer #1C=C1CC23C=CC4C(C)(C(=O)O[Si](C)(C)C)CCCC4(C)C2CCC1C32344.0Semi standard non polar33892256
ent-6,16-Kauradien-19-oic acid,1TBDMS,isomer #1C=C1CC23C=CC4C(C)(C(=O)O[Si](C)(C)C(C)(C)C)CCCC4(C)C2CCC1C32647.3Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - ent-6,16-Kauradien-19-oic acid GC-MS (Non-derivatized) - 70eV, Positivesplash10-01p9-0390000000-e535d75a613fb7a525912017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - ent-6,16-Kauradien-19-oic acid GC-MS (1 TMS) - 70eV, Positivesplash10-052r-4559000000-d523e407bdcc534d55a72017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - ent-6,16-Kauradien-19-oic acid GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - ent-6,16-Kauradien-19-oic acid 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-6,16-Kauradien-19-oic acid 10V, Positive-QTOFsplash10-0udi-0189000000-7f0a0b79c836494804032016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-6,16-Kauradien-19-oic acid 20V, Positive-QTOFsplash10-0pb9-0391000000-430fbd1ade3bf6ecaa212016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-6,16-Kauradien-19-oic acid 40V, Positive-QTOFsplash10-014i-4960000000-49be76a9fe407d3e53b52016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-6,16-Kauradien-19-oic acid 10V, Negative-QTOFsplash10-0002-0090000000-5e0940e8e363e8d0eff72016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-6,16-Kauradien-19-oic acid 20V, Negative-QTOFsplash10-0a4j-0090000000-2079454b812180f0c4102016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-6,16-Kauradien-19-oic acid 40V, Negative-QTOFsplash10-053i-1090000000-d62619415c241318e7d62016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-6,16-Kauradien-19-oic acid 10V, Negative-QTOFsplash10-0002-0090000000-344a11f406f20d02412c2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-6,16-Kauradien-19-oic acid 20V, Negative-QTOFsplash10-0002-0090000000-cf2263875a21e31be11f2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-6,16-Kauradien-19-oic acid 40V, Negative-QTOFsplash10-0002-2090000000-72c62c77cacab0293b722021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-6,16-Kauradien-19-oic acid 10V, Positive-QTOFsplash10-0a4i-0092000000-107a4b4fb2f509ae4f962021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-6,16-Kauradien-19-oic acid 20V, Positive-QTOFsplash10-0rk9-0592000000-2f488bcc63f2a9b5e89e2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - ent-6,16-Kauradien-19-oic acid 40V, Positive-QTOFsplash10-015i-1920000000-a1aae095646020d1662b2021-09-22Wishart 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 IDFDB015631
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound14635430
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. Simons K, Toomre D: Lipid rafts and signal transduction. Nat Rev Mol Cell Biol. 2000 Oct;1(1):31-9. [PubMed:11413487 ]
  2. 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 ]
  3. 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 ]
  4. 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 ]
  5. (). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .
  6. Gunstone, Frank D., John L. Harwood, and Albert J. Dijkstra (2007). The lipid handbook with CD-ROM. CRC Press.