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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 09:47:19 UTC
Update Date2021-09-26 23:04:30 UTC
HMDB IDHMDB0252107
Secondary Accession NumbersNone
Metabolite Identification
Common NameEtiroxate
DescriptionEtiroxate, also known as etiroxic acid or skleronorm, belongs to the class of organic compounds known as diphenylethers. These are aromatic compounds containing two benzene rings linked to each other through an ether group. Based on a literature review a small amount of articles have been published on Etiroxate. This compound has been identified in human blood as reported by (PMID: 31557052 ). Etiroxate is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Etiroxate 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
Etiroxic acidGenerator
DL-alpha-Methylthyroxine ethyl esterHMDB
SkleronormHMDB
EtiroxatHMDB
Etiroxate hydrochlorideHMDB
Etiroxate, (L)-isomerHMDB
Etiroxate, hydrochloride, (DL)-isomerHMDB
Chemical FormulaC18H17I4NO4
Average Molecular Weight818.955
Monoisotopic Molecular Weight818.73364
IUPAC Nameethyl 2-amino-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]-2-methylpropanoate
Traditional Nameethyl 2-amino-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]-2-methylpropanoate
CAS Registry NumberNot Available
SMILES
CCOC(=O)C(C)(N)CC1=CC(I)=C(OC2=CC(I)=C(O)C(I)=C2)C(I)=C1
InChI Identifier
InChI=1S/C18H17I4NO4/c1-3-26-17(25)18(2,23)8-9-4-13(21)16(14(22)5-9)27-10-6-11(19)15(24)12(20)7-10/h4-7,24H,3,8,23H2,1-2H3
InChI KeyLWZCMKGGFONJPB-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as diphenylethers. These are aromatic compounds containing two benzene rings linked to each other through an ether group.
KingdomOrganic compounds
Super ClassBenzenoids
ClassBenzene and substituted derivatives
Sub ClassDiphenylethers
Direct ParentDiphenylethers
Alternative Parents
Substituents
  • Diphenylether
  • Diaryl ether
  • Alpha-amino acid or derivatives
  • Amphetamine or derivatives
  • Phenylpropane
  • Phenoxy compound
  • 2-halophenol
  • 2-iodophenol
  • Phenol ether
  • Fatty acid ester
  • Halobenzene
  • Iodobenzene
  • Phenol
  • Aralkylamine
  • Fatty acyl
  • Aryl halide
  • Aryl iodide
  • Carboxylic acid ester
  • Amino acid or derivatives
  • Carboxylic acid derivative
  • Ether
  • Monocarboxylic acid or derivatives
  • Amine
  • Organic nitrogen compound
  • Organopnictogen compound
  • Hydrocarbon derivative
  • Primary amine
  • Carbonyl group
  • Organohalogen compound
  • Organoiodide
  • Organooxygen compound
  • Organonitrogen compound
  • Organic oxide
  • Organic oxygen compound
  • Primary aliphatic amine
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic 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
logP5.23ALOGPS
logP6.41ChemAxon
logS-5.5ALOGPS
pKa (Strongest Acidic)7.63ChemAxon
pKa (Strongest Basic)7ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area81.78 ŲChemAxon
Rotatable Bond Count7ChemAxon
Refractivity141.02 m³·mol⁻¹ChemAxon
Polarizability54.21 ųChemAxon
Number of Rings2ChemAxon
BioavailabilityNoChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M+H]+234.97230932474
DeepCCS[M-H]-232.61430932474
DeepCCS[M-2H]-266.43730932474
DeepCCS[M+Na]+241.66530932474
AllCCS[M+H]+215.232859911
AllCCS[M+H-H2O]+214.732859911
AllCCS[M+NH4]+215.632859911
AllCCS[M+Na]+215.732859911
AllCCS[M-H]-210.632859911
AllCCS[M+Na-2H]-212.932859911
AllCCS[M+HCOO]-215.732859911

Predicted Retention Times

Underivatized

Chromatographic MethodRetention TimeReference
Predicted by Siyang on May 30, 202213.4516 minutes33406817
Predicted by Siyang using ReTip algorithm on June 8, 20222.15 minutes32390414
Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid1817.9 seconds40023050
Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid279.4 seconds40023050
Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid154.5 seconds40023050
Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid187.1 seconds40023050
RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid83.7 seconds40023050
Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid726.5 seconds40023050
BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid723.0 seconds40023050
HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate)144.1 seconds40023050
UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid997.1 seconds40023050
BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid596.1 seconds40023050
UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid1465.0 seconds40023050
SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid350.6 seconds40023050
RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid410.3 seconds40023050
MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate372.4 seconds40023050
KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA227.5 seconds40023050
Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water69.6 seconds40023050

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
EtiroxateCCOC(=O)C(C)(N)CC1=CC(I)=C(OC2=CC(I)=C(O)C(I)=C2)C(I)=C15044.7Standard polar33892256
EtiroxateCCOC(=O)C(C)(N)CC1=CC(I)=C(OC2=CC(I)=C(O)C(I)=C2)C(I)=C13779.4Standard non polar33892256
EtiroxateCCOC(=O)C(C)(N)CC1=CC(I)=C(OC2=CC(I)=C(O)C(I)=C2)C(I)=C13948.5Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Etiroxate GC-MS (TMS_1_1) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Etiroxate GC-MS (TMS_1_2) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Etiroxate 10V, Positive-QTOFsplash10-014i-0000000790-98efd67549b86752358e2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Etiroxate 20V, Positive-QTOFsplash10-00xs-0000001910-5955c712133407da9cb82021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Etiroxate 40V, Positive-QTOFsplash10-0zia-5000012900-f0a830683072f1e1c3112021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Etiroxate 10V, Negative-QTOFsplash10-014i-0000000490-a2c3a0cd3d0f4ee7e28f2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Etiroxate 20V, Negative-QTOFsplash10-004i-0700002910-ef84d840b9fea92bc5702021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Etiroxate 40V, Negative-QTOFsplash10-004i-0900000000-0dba40d354fa6a5575e02021-10-12Wishart 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 ID59112
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound65683
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 ]