Hmdb loader
Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2021-09-23 03:07:11 UTC
Update Date2021-09-23 03:07:11 UTC
HMDB IDHMDB0301859
Secondary Accession NumbersNone
Metabolite Identification
Common NameOryzalexin A
DescriptionOryzalexin a, also known as 3a,7-oxo-ent-sandaracopimaradiene, is a member of the class of compounds known as diterpenoids. Diterpenoids are terpene compounds formed by four isoprene units. Oryzalexin a is practically insoluble (in water) and an extremely weak acidic compound (based on its pKa). Oryzalexin a can be found in rice, which makes oryzalexin a a potential biomarker for the consumption of this food product.
Structure
Thumb
Synonyms
ValueSource
3alpha,7-oxo-ent-SandaracopimaradieneChEBI
3alpha-ent-Sandaracopimaradien-7-oneChEBI
3a,7-oxo-ent-SandaracopimaradieneGenerator
3Α,7-oxo-ent-sandaracopimaradieneGenerator
3a-ent-Sandaracopimaradien-7-oneGenerator
3Α-ent-sandaracopimaradien-7-oneGenerator
Chemical FormulaC20H30O2
Average Molecular Weight302.451
Monoisotopic Molecular Weight302.224580204
IUPAC Name(2R,4aR,4bS,7S,10aS)-7-ethenyl-2-hydroxy-1,1,4a,7-tetramethyl-1,2,3,4,4a,4b,5,6,7,9,10,10a-dodecahydrophenanthren-9-one
Traditional Nameoryzalexin A
CAS Registry NumberNot Available
SMILES
CC1(C)[C@H](O)CC[C@@]2(C)[C@@H]3CC[C@@](C)(C=C)C=C3C(=O)C[C@H]12
InChI Identifier
InChI=1S/C20H30O2/c1-6-19(4)9-7-14-13(12-19)15(21)11-16-18(2,3)17(22)8-10-20(14,16)5/h6,12,14,16-17,22H,1,7-11H2,2-5H3/t14-,16-,17-,19-,20+/m1/s1
InChI KeyQOWLIQGNZBOQNG-JECYIRHJSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as diterpenoids. These are terpene compounds formed by four isoprene units.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassPrenol lipids
Sub ClassDiterpenoids
Direct ParentDiterpenoids
Alternative Parents
Substituents
  • Pimarane diterpenoid
  • Diterpenoid
  • Phenanthrene
  • Hydrophenanthrene
  • Cyclic alcohol
  • Secondary alcohol
  • Ketone
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Alcohol
  • Aliphatic homopolycyclic compound
Molecular FrameworkAliphatic homopolycyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
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
logP3.67ALOGPS
logP3.98ChemAxon
logS-5.2ALOGPS
pKa (Strongest Acidic)19.55ChemAxon
pKa (Strongest Basic)-0.81ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area37.3 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity90.83 m³·mol⁻¹ChemAxon
Polarizability35.82 ųChemAxon
Number of Rings3ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
AllCCS[M+H]+176.53232859911
AllCCS[M+H-H2O]+173.44432859911
AllCCS[M+Na]+180.21432859911
AllCCS[M+NH4]+179.39232859911
AllCCS[M-H]-183.27632859911
AllCCS[M+Na-2H]-183.71932859911
AllCCS[M+HCOO]-184.34532859911
DeepCCS[M-2H]-211.16230932474
DeepCCS[M+Na]+186.16730932474

Predicted Kovats Retention Indices

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Oryzalexin A,2TMS,isomer #1C=C[C@@]1(C)C=C2C(O[Si](C)(C)C)=C[C@@H]3C(C)(C)[C@H](O[Si](C)(C)C)CC[C@@]3(C)[C@@H]2CC12416.5Semi standard non polar33892256
Oryzalexin A,2TMS,isomer #1C=C[C@@]1(C)C=C2C(O[Si](C)(C)C)=C[C@@H]3C(C)(C)[C@H](O[Si](C)(C)C)CC[C@@]3(C)[C@@H]2CC12350.7Standard non polar33892256
Oryzalexin A,2TMS,isomer #1C=C[C@@]1(C)C=C2C(O[Si](C)(C)C)=C[C@@H]3C(C)(C)[C@H](O[Si](C)(C)C)CC[C@@]3(C)[C@@H]2CC12816.8Standard polar33892256
Oryzalexin A,2TBDMS,isomer #1C=C[C@@]1(C)C=C2C(O[Si](C)(C)C(C)(C)C)=C[C@@H]3C(C)(C)[C@H](O[Si](C)(C)C(C)(C)C)CC[C@@]3(C)[C@@H]2CC12867.6Semi standard non polar33892256
Oryzalexin A,2TBDMS,isomer #1C=C[C@@]1(C)C=C2C(O[Si](C)(C)C(C)(C)C)=C[C@@H]3C(C)(C)[C@H](O[Si](C)(C)C(C)(C)C)CC[C@@]3(C)[C@@H]2CC12728.4Standard non polar33892256
Oryzalexin A,2TBDMS,isomer #1C=C[C@@]1(C)C=C2C(O[Si](C)(C)C(C)(C)C)=C[C@@H]3C(C)(C)[C@H](O[Si](C)(C)C(C)(C)C)CC[C@@]3(C)[C@@H]2CC13052.7Standard polar33892256
Spectra

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Oryzalexin A 10V, Positive-QTOFsplash10-0f79-1094000000-fd40020e57de89576e5d2016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Oryzalexin A 20V, Positive-QTOFsplash10-0fri-4191000000-990746a32b9980336c022016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Oryzalexin A 40V, Positive-QTOFsplash10-0udi-9160000000-23e79adbcc5af2ce41f72016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Oryzalexin A 10V, Negative-QTOFsplash10-0udi-0029000000-6212b0a28988a457bda02016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Oryzalexin A 20V, Negative-QTOFsplash10-0udi-0069000000-ca99ce34f88391d19b6f2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Oryzalexin A 40V, Negative-QTOFsplash10-0fy9-2190000000-0989484e4aa7a71627682016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Oryzalexin A 10V, Positive-QTOFsplash10-0udi-0059000000-4d291718f3028fe8774d2021-10-21Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Oryzalexin A 20V, Positive-QTOFsplash10-0uki-2592000000-2d43830b0ad5a09ad9e72021-10-21Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Oryzalexin A 40V, Positive-QTOFsplash10-007c-5910000000-03814e6614c6b1064b212021-10-21Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Oryzalexin A 10V, Negative-QTOFsplash10-0udi-0009000000-16d58525184e918518fa2021-10-21Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Oryzalexin A 20V, Negative-QTOFsplash10-0udi-0019000000-1eeabfa4697915e0ec722021-10-21Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Oryzalexin A 40V, Negative-QTOFsplash10-0udi-0095000000-8c2a0d2ae2d5b9c945d22021-10-21Wishart LabView Spectrum
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 IDFDB001529
KNApSAcK IDC00003461
Chemspider ID139649
KEGG Compound IDC09148
BioCyc IDCPD-7093
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound158755
PDB IDNot Available
ChEBI ID78258
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 ReferencesNot Available