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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 15:23:28 UTC
Update Date2021-09-26 23:10:35 UTC
HMDB IDHMDB0255610
Secondary Accession NumbersNone
Metabolite Identification
Common NameNimbolide
DescriptionNimbolide belongs to the class of organic compounds known as limonoids. These are highly oxygenated, modified terpenoids with a prototypical structure either containing or derived from a precursor with a 4,4,8-trimethyl-17-furanylsteroid skeleton. All naturally occurring citrus limonoids contain a furan ring attached to the D-ring, at C-17, as well as oxygen containing functional groups at C-3, C-4, C-7, C-16 and C-17. Nimbolide is an extremely weak basic (essentially neutral) compound (based on its pKa). This compound has been identified in human blood as reported by (PMID: 31557052 ). Nimbolide is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Nimbolide is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources.
Structure
Thumb
Synonyms
ValueSource
Methyl 2-[6-(furan-3-yl)-7,9,11,15-tetramethyl-12,16-dioxo-3,17-dioxapentacyclo[9.6.1.0²,⁹.0⁴,⁸.0¹⁵,¹⁸]octadeca-7,13-dien-10-yl]acetic acidGenerator
Chemical FormulaC27H30O7
Average Molecular Weight466.53
Monoisotopic Molecular Weight466.199153306
IUPAC Namemethyl 2-[6-(furan-3-yl)-7,9,11,15-tetramethyl-12,16-dioxo-3,17-dioxapentacyclo[9.6.1.0²,⁹.0⁴,⁸.0¹⁵,¹⁸]octadeca-7,13-dien-10-yl]acetate
Traditional Namemethyl 2-[6-(furan-3-yl)-7,9,11,15-tetramethyl-12,16-dioxo-3,17-dioxapentacyclo[9.6.1.0²,⁹.0⁴,⁸.0¹⁵,¹⁸]octadeca-7,13-dien-10-yl]acetate
CAS Registry NumberNot Available
SMILES
COC(=O)CC1C2(C)C(OC3CC(C(C)=C23)C2=COC=C2)C2OC(=O)C3(C)C=CC(=O)C1(C)C23
InChI Identifier
InChI=1S/C27H30O7/c1-13-15(14-7-9-32-12-14)10-16-20(13)27(4)17(11-19(29)31-5)26(3)18(28)6-8-25(2)22(26)21(23(27)33-16)34-24(25)30/h6-9,12,15-17,21-23H,10-11H2,1-5H3
InChI KeyJZIQWNPPBKFOPT-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as limonoids. These are highly oxygenated, modified terpenoids with a prototypical structure either containing or derived from a precursor with a 4,4,8-trimethyl-17-furanylsteroid skeleton. All naturally occurring citrus limonoids contain a furan ring attached to the D-ring, at C-17, as well as oxygen containing functional groups at C-3, C-4, C-7, C-16 and C-17.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassPrenol lipids
Sub ClassTriterpenoids
Direct ParentLimonoids
Alternative Parents
Substituents
  • Limonoid skeleton
  • Naphthofuran
  • Cyclohexenone
  • Dicarboxylic acid or derivatives
  • Gamma butyrolactone
  • Heteroaromatic compound
  • Methyl ester
  • Tetrahydrofuran
  • Furan
  • Carboxylic acid ester
  • Ketone
  • Lactone
  • Oxacycle
  • Carboxylic acid derivative
  • Organoheterocyclic compound
  • Dialkyl ether
  • Ether
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Organic oxide
  • Organic oxygen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External DescriptorsNot Available
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
logP3.76ALOGPS
logP3.14ChemAxon
logS-4.1ALOGPS
pKa (Strongest Basic)-2.9ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area92.04 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity121.86 m³·mol⁻¹ChemAxon
Polarizability48.35 ųChemAxon
Number of Rings6ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M-2H]-237.02730932474
DeepCCS[M+Na]+212.45330932474
AllCCS[M+H]+209.332859911
AllCCS[M+H-H2O]+207.232859911
AllCCS[M+NH4]+211.232859911
AllCCS[M+Na]+211.832859911
AllCCS[M-H]-215.932859911
AllCCS[M+Na-2H]-216.732859911
AllCCS[M+HCOO]-217.832859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
NimbolideCOC(=O)CC1C2(C)C(OC3CC(C(C)=C23)C2=COC=C2)C2OC(=O)C3(C)C=CC(=O)C1(C)C234747.4Standard polar33892256
NimbolideCOC(=O)CC1C2(C)C(OC3CC(C(C)=C23)C2=COC=C2)C2OC(=O)C3(C)C=CC(=O)C1(C)C233097.3Standard non polar33892256
NimbolideCOC(=O)CC1C2(C)C(OC3CC(C(C)=C23)C2=COC=C2)C2OC(=O)C3(C)C=CC(=O)C1(C)C233433.2Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Nimbolide GC-MS (Non-derivatized) - 70eV, Positivesplash10-0udi-1974700000-afeb12077a05b66fb48e2021-09-24Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Nimbolide GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Blood
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound100017
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. Barupal DK, Fiehn O: Generating the Blood Exposome Database Using a Comprehensive Text Mining and Database Fusion Approach. Environ Health Perspect. 2019 Sep;127(9):97008. doi: 10.1289/EHP4713. Epub 2019 Sep 26. [PubMed:31557052 ]