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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 13:47:24 UTC
Update Date2021-09-26 23:08:27 UTC
HMDB IDHMDB0254458
Secondary Accession NumbersNone
Metabolite Identification
Common NameMeptazinol
DescriptionMeptazinol belongs to the class of organic compounds known as azepanes. These are organic compounds containing a saturated seven member heterocycle, with one nitrogen atom. Meptazinol is a very strong basic compound (based on its pKa). A partial μ-opioid receptor agonist, its mixed agonist/antagonist activity affords it a lower risk of dependence and abuse than full μ agonists like morphine. Meptazinol is a 3-phenylazepane derivative, whereas the other phenazepanes like ethoheptazine and proheptazine are 4-phenylazepanes. Indications for use in moderate to severe pain, most commonly used to treat pain in obstetrics (childbirth). Meptazinol (trade name Meptid) is an opioid analgesic developed by Wyeth in the 1970s. Meptazinol exhibits not only a short onset of action, but also a shorter duration of action relative to other opioids such as morphine, pentazocine, or buprenorphine. This compound has been identified in human blood as reported by (PMID: 31557052 ). Meptazinol is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Meptazinol 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
Cahill may roberts brand OF meptazinol hydrochlorideMeSH
Meptazinol hydrochlorideMeSH
MeptidMeSH
Riemser brand OF meptazinol hydrochlorideMeSH
Shire brand OF meptazinol hydrochlorideMeSH
Chemical FormulaC15H23NO
Average Molecular Weight233.355
Monoisotopic Molecular Weight233.177964365
IUPAC Name3-(3-ethyl-1-methylazepan-3-yl)phenol
Traditional Namemeptazinol
CAS Registry NumberNot Available
SMILES
CCC1(CCCCN(C)C1)C1=CC(O)=CC=C1
InChI Identifier
InChI=1S/C15H23NO/c1-3-15(9-4-5-10-16(2)12-15)13-7-6-8-14(17)11-13/h6-8,11,17H,3-5,9-10,12H2,1-2H3
InChI KeyJLICHNCFTLFZJN-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as azepanes. These are organic compounds containing a saturated seven member heterocycle, with one nitrogen atom.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassAzepanes
Sub ClassNot Available
Direct ParentAzepanes
Alternative Parents
Substituents
  • Azepane
  • 1-hydroxy-4-unsubstituted benzenoid
  • 1-hydroxy-2-unsubstituted benzenoid
  • Phenol
  • Aralkylamine
  • Monocyclic benzene moiety
  • Benzenoid
  • Tertiary amine
  • Tertiary aliphatic amine
  • Azacycle
  • Amine
  • Hydrocarbon derivative
  • Organopnictogen compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic 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
logP3.75ALOGPS
logP3.07ChemAxon
logS-2.8ALOGPS
pKa (Strongest Acidic)10.23ChemAxon
pKa (Strongest Basic)9.16ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area23.47 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity72.28 m³·mol⁻¹ChemAxon
Polarizability27.89 ųChemAxon
Number of Rings2ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M+H]+157.6830932474
DeepCCS[M-H]-155.32230932474
DeepCCS[M-2H]-188.27730932474
DeepCCS[M+Na]+163.77330932474
AllCCS[M+H]+153.532859911
AllCCS[M+H-H2O]+149.532859911
AllCCS[M+NH4]+157.332859911
AllCCS[M+Na]+158.332859911
AllCCS[M-H]-162.632859911
AllCCS[M+Na-2H]-163.032859911
AllCCS[M+HCOO]-163.632859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
MeptazinolCCC1(CCCCN(C)C1)C1=CC(O)=CC=C12824.1Standard polar33892256
MeptazinolCCC1(CCCCN(C)C1)C1=CC(O)=CC=C11874.2Standard non polar33892256
MeptazinolCCC1(CCCCN(C)C1)C1=CC(O)=CC=C11918.6Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Meptazinol GC-MS (Non-derivatized) - 70eV, Positivesplash10-03e9-3920000000-befb017ce35fa50f84602017-08-28Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Meptazinol GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Meptazinol GC-MS (TMS_1_1) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Meptazinol GC-MS (TBDMS_1_1) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental LC-MS/MSLC-MS/MS Spectrum - Meptazinol LC-ESI-QFT , positive-QTOFsplash10-001i-0090000000-e2ccc6bbd7aaeb81bea92017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Meptazinol LC-ESI-QFT , positive-QTOFsplash10-001i-0090000000-a816abbf7cdc7787b7262017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Meptazinol LC-ESI-QFT , positive-QTOFsplash10-053r-1970000000-325f14eb89956314e4ab2017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Meptazinol LC-ESI-QFT , positive-QTOFsplash10-0a4i-1900000000-0074e1202dfc45b8aff52017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Meptazinol LC-ESI-QFT , positive-QTOFsplash10-0a4i-2900000000-78ca29f251cbfe79f6b32017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Meptazinol LC-ESI-QFT , positive-QTOFsplash10-0a4i-3900000000-5bee97314182dc1e358f2017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Meptazinol 90V, Positive-QTOFsplash10-0a4i-3900000000-0c9fad6577f860defc972021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Meptazinol 75V, Positive-QTOFsplash10-0a4i-1900000000-0685989e712dcfbbb00e2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Meptazinol 60V, Positive-QTOFsplash10-0a4i-1900000000-efb048446f1217337e462021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Meptazinol 45V, Positive-QTOFsplash10-053r-0970000000-62ae7cc6fb7ce94ac50c2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Meptazinol 30V, Positive-QTOFsplash10-001i-0090000000-fb7cd692dad7ff04481e2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Meptazinol 15V, Positive-QTOFsplash10-001i-0090000000-cfc52a7a204988123f3d2021-09-20HMDB team, MONAView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Meptazinol 10V, Positive-QTOFsplash10-001i-0090000000-7b1c1336857703b5f3fc2017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Meptazinol 20V, Positive-QTOFsplash10-001i-0590000000-41ee9dce3bde65b478ed2017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Meptazinol 40V, Positive-QTOFsplash10-0005-5900000000-8ef5370d37715e4c7ede2017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Meptazinol 10V, Negative-QTOFsplash10-001i-0090000000-95af27276d2e275635ff2017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Meptazinol 20V, Negative-QTOFsplash10-001i-0190000000-d945ae8103eac25b0c3f2017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Meptazinol 40V, Negative-QTOFsplash10-0006-9420000000-087ad0bbd7a051b9cc7c2017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Meptazinol 10V, Positive-QTOFsplash10-001i-0590000000-8f98daea23ac3e8561a22021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Meptazinol 20V, Positive-QTOFsplash10-01pk-1920000000-8db79d79fc95a7253d412021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Meptazinol 40V, Positive-QTOFsplash10-0bta-3910000000-b3164247692ff0dfc2892021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Meptazinol 10V, Negative-QTOFsplash10-001i-0090000000-1df18e692404252b2c982021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Meptazinol 20V, Negative-QTOFsplash10-0f89-0090000000-12c0a21b58452efe71f72021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Meptazinol 40V, Negative-QTOFsplash10-0f8i-0790000000-be0c3df2440d1834a1a32021-10-12Wishart 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 IDDB13478
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 LinkMeptazinol
METLIN IDNot Available
PubChem Compound41049
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 ]