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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 12:31:29 UTC
Update Date2021-09-26 23:07:07 UTC
HMDB IDHMDB0253709
Secondary Accession NumbersNone
Metabolite Identification
Common NameIsoxaben
DescriptionIsoxaben belongs to the class of organic compounds known as dimethoxybenzenes. These are organic aromatic compounds containing a monocyclic benzene moiety carrying exactly two methoxy groups. Based on a literature review a significant number of articles have been published on Isoxaben. This compound has been identified in human blood as reported by (PMID: 31557052 ). Isoxaben is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Isoxaben 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
2,6-Dimethoxy-N-(3-(1-ethyl-1-methylpropyl)-5-isoxazolyl)benzamideChEBI
N-(3-(1-Ethyl-1-methylpropyl)-5-isoxazolyl)-2,6-dimethoxybenzamideChEBI
Chemical FormulaC18H24N2O4
Average Molecular Weight332.3942
Monoisotopic Molecular Weight332.173607266
IUPAC Name2,6-dimethoxy-N-[3-(3-methylpentan-3-yl)-1,2-oxazol-5-yl]benzamide
Traditional Nameisoxaben
CAS Registry NumberNot Available
SMILES
CCC(C)(CC)C1=NOC(NC(=O)C2=C(OC)C=CC=C2OC)=C1
InChI Identifier
InChI=1S/C18H24N2O4/c1-6-18(3,7-2)14-11-15(24-20-14)19-17(21)16-12(22-4)9-8-10-13(16)23-5/h8-11H,6-7H2,1-5H3,(H,19,21)
InChI KeyPMHURSZHKKJGBM-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as dimethoxybenzenes. These are organic aromatic compounds containing a monocyclic benzene moiety carrying exactly two methoxy groups.
KingdomOrganic compounds
Super ClassBenzenoids
ClassBenzene and substituted derivatives
Sub ClassMethoxybenzenes
Direct ParentDimethoxybenzenes
Alternative Parents
Substituents
  • Dimethoxybenzene
  • M-dimethoxybenzene
  • Benzamide
  • Benzoic acid or derivatives
  • Anisole
  • Phenoxy compound
  • Benzoyl
  • Phenol ether
  • Alkyl aryl ether
  • Heteroaromatic compound
  • Isoxazole
  • Azole
  • Carboxamide group
  • Secondary carboxylic acid amide
  • Azacycle
  • Oxacycle
  • Carboxylic acid derivative
  • Ether
  • Organoheterocyclic compound
  • Organic oxygen compound
  • Organopnictogen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organic nitrogen compound
  • Organonitrogen compound
  • Organooxygen compound
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
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
logP3.92ALOGPS
logP4.02ChemAxon
logS-3.9ALOGPS
pKa (Strongest Acidic)7.92ChemAxon
pKa (Strongest Basic)0.24ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area73.59 ŲChemAxon
Rotatable Bond Count7ChemAxon
Refractivity92.71 m³·mol⁻¹ChemAxon
Polarizability36.35 ųChemAxon
Number of Rings2ChemAxon
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+H]+185.54230932474
DeepCCS[M-H]-183.18430932474
DeepCCS[M-2H]-216.42930932474
DeepCCS[M+Na]+191.65730932474
AllCCS[M+H]+180.432859911
AllCCS[M+H-H2O]+177.432859911
AllCCS[M+NH4]+183.332859911
AllCCS[M+Na]+184.132859911
AllCCS[M-H]-184.032859911
AllCCS[M+Na-2H]-184.332859911
AllCCS[M+HCOO]-184.732859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
IsoxabenCCC(C)(CC)C1=NOC(NC(=O)C2=C(OC)C=CC=C2OC)=C13330.8Standard polar33892256
IsoxabenCCC(C)(CC)C1=NOC(NC(=O)C2=C(OC)C=CC=C2OC)=C12507.8Standard non polar33892256
IsoxabenCCC(C)(CC)C1=NOC(NC(=O)C2=C(OC)C=CC=C2OC)=C12558.1Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Isoxaben,1TMS,isomer #1CCC(C)(CC)C1=NOC(N(C(=O)C2=C(OC)C=CC=C2OC)[Si](C)(C)C)=C12512.9Semi standard non polar33892256
Isoxaben,1TMS,isomer #1CCC(C)(CC)C1=NOC(N(C(=O)C2=C(OC)C=CC=C2OC)[Si](C)(C)C)=C12392.9Standard non polar33892256
Isoxaben,1TMS,isomer #1CCC(C)(CC)C1=NOC(N(C(=O)C2=C(OC)C=CC=C2OC)[Si](C)(C)C)=C13188.0Standard polar33892256
Isoxaben,1TBDMS,isomer #1CCC(C)(CC)C1=NOC(N(C(=O)C2=C(OC)C=CC=C2OC)[Si](C)(C)C(C)(C)C)=C12760.7Semi standard non polar33892256
Isoxaben,1TBDMS,isomer #1CCC(C)(CC)C1=NOC(N(C(=O)C2=C(OC)C=CC=C2OC)[Si](C)(C)C(C)(C)C)=C12638.0Standard non polar33892256
Isoxaben,1TBDMS,isomer #1CCC(C)(CC)C1=NOC(N(C(=O)C2=C(OC)C=CC=C2OC)[Si](C)(C)C(C)(C)C)=C13268.8Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Isoxaben GC-MS (Non-derivatized) - 70eV, Positivesplash10-014i-3903000000-f16958022627a09df9822021-09-24Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Isoxaben GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
MSMass Spectrum (Electron Ionization)splash10-014i-2900000000-164b769a70e91da1db422014-10-20Not AvailableView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental LC-MS/MSLC-MS/MS Spectrum - Isoxaben 30V, Positive-QTOFsplash10-014i-0900000000-8da973dc1ca0cb36d9902021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isoxaben 45V, Positive-QTOFsplash10-014i-0900000000-8b192ae9486a318d6b632021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isoxaben 15V, Positive-QTOFsplash10-0159-0908000000-c3a7f046b73dc7c3274b2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isoxaben 90V, Negative-QTOFsplash10-01c0-5900000000-f67cf219e8d240c4d4c42021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isoxaben 75V, Negative-QTOFsplash10-01c0-3900000000-a2fb96dc79ba166e3dce2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isoxaben 50V, Positive-QTOFsplash10-014i-0900000000-241f2b84a9325cfc9be72021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isoxaben 10V, Positive-QTOFsplash10-00lr-0509000000-af1e638370b3d02e6c8b2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isoxaben 15V, Positive-QTOFsplash10-00lr-0509000000-0c4fe01785e4d6eaa6332021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isoxaben 30V, Positive-QTOFsplash10-014i-0900000000-8b0770a8338519964b132021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isoxaben 20V, Positive-QTOFsplash10-014i-0900000000-fd05c1d80b417be629582021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isoxaben 40V, Positive-QTOFsplash10-014i-0900000000-d60a903b46103308acd02021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isoxaben 30V, Positive-QTOFsplash10-014i-0900000000-fa08c834e78987f56e6f2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isoxaben 75V, Negative-QTOFsplash10-00yi-4900000000-e06991c103a97f428c762021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isoxaben 90V, Positive-QTOFsplash10-0avi-1900000000-8b78cad7d4a7ac387fe32021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isoxaben 15V, Negative-QTOFsplash10-001i-0009000000-3f46eefaffed0288ce5c2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isoxaben 30V, Negative-QTOFsplash10-001i-1539000000-18af2d2605e43b37714c2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isoxaben 90V, Negative-QTOFsplash10-06e9-5900000000-2ede399c0256244af9ac2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isoxaben 45V, Negative-QTOFsplash10-00e9-3900000000-e70396ec196b81804ebe2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isoxaben 60V, Negative-QTOFsplash10-00yi-3900000000-cd4bc896b1e7dbc8753c2021-09-20HMDB team, MONAView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isoxaben 10V, Positive-QTOFsplash10-001i-0907000000-468e8fcd8ad79ff9e8182016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isoxaben 20V, Positive-QTOFsplash10-0159-1901000000-4539f5aa91478456b4892016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isoxaben 40V, Positive-QTOFsplash10-015i-2900000000-7aa8f756557ba1f869932016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isoxaben 10V, Negative-QTOFsplash10-001i-0319000000-cbf4088118bde459e07a2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isoxaben 20V, Negative-QTOFsplash10-0019-1901000000-6d401b669f987f3058762016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isoxaben 40V, Negative-QTOFsplash10-0zgr-3900000000-eb292ebd98b80ae577c52016-08-03Wishart LabView Spectrum

NMR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
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 ID66323
KEGG Compound IDC18504
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkIsoxaben
METLIN IDNot Available
PubChem Compound73672
PDB IDNot Available
ChEBI ID63956
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 ]