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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-10 22:38:32 UTC
Update Date2021-09-26 22:54:08 UTC
HMDB IDHMDB0245581
Secondary Accession NumbersNone
Metabolite Identification
Common Name6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole
Description6-methoxy-1H,2H,3H,4H,9H-pyrido[3,4-b]indole belongs to the class of organic compounds known as beta carbolines. Beta carbolines are compounds containing a 9H-pyrido[3,4-b]indole moiety. Based on a literature review very few articles have been published on 6-methoxy-1H,2H,3H,4H,9H-pyrido[3,4-b]indole. This compound has been identified in human blood as reported by (PMID: 31557052 ). 6-methoxy-2,3,4,9-tetrahydro-1h-pyrido[3,4-b]indole is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically 6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole 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
6-MethoxytetrahydronorharmaneMeSH
PinolineMeSH
6-Methoxy-1,2,3,4-tetrahydro beta-carbolineMeSH
6-MethoxytryptolineMeSH
6-Methoxytryptoline hydrochlorideMeSH
6-Methoxytryptoline monohydrochlorideMeSH
6-Methoxy-1,2,3,4-tetrahydro-beta-carbolineMeSH
Chemical FormulaC12H14N2O
Average Molecular Weight202.2524
Monoisotopic Molecular Weight202.11061308
IUPAC Name6-methoxy-1H,2H,3H,4H,9H-pyrido[3,4-b]indole
Traditional Name6-methoxy-1H,2H,3H,4H,9H-pyrido[3,4-b]indole
CAS Registry NumberNot Available
SMILES
COC1=CC2=C(NC3=C2CCNC3)C=C1
InChI Identifier
InChI=1S/C12H14N2O/c1-15-8-2-3-11-10(6-8)9-4-5-13-7-12(9)14-11/h2-3,6,13-14H,4-5,7H2,1H3
InChI KeyQYMDEOQLJUUNOF-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as beta carbolines. Beta carbolines are compounds containing a 9H-pyrido[3,4-b]indole moiety.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassIndoles and derivatives
Sub ClassPyridoindoles
Direct ParentBeta carbolines
Alternative Parents
Substituents
  • Beta-carboline
  • 3-alkylindole
  • Indole
  • Anisole
  • Alkyl aryl ether
  • Aralkylamine
  • Benzenoid
  • Heteroaromatic compound
  • Pyrrole
  • Secondary aliphatic amine
  • Ether
  • Azacycle
  • Secondary amine
  • Hydrocarbon derivative
  • Amine
  • Organic nitrogen compound
  • Organopnictogen compound
  • Organonitrogen compound
  • Organooxygen compound
  • Organic oxygen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External DescriptorsNot Available
Ontology
Not AvailableNot 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
logP1.34ALOGPS
logP1.43ChemAxon
logS-2.8ALOGPS
pKa (Strongest Acidic)16.73ChemAxon
pKa (Strongest Basic)9.04ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area37.05 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity60.04 m³·mol⁻¹ChemAxon
Polarizability22.72 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
DeepCCS[M+H]+145.96330932474
DeepCCS[M-H]-143.60530932474
DeepCCS[M-2H]-178.3930932474
DeepCCS[M+Na]+153.07330932474
AllCCS[M+H]+146.932859911
AllCCS[M+H-H2O]+142.932859911
AllCCS[M+NH4]+150.732859911
AllCCS[M+Na]+151.732859911
AllCCS[M-H]-149.032859911
AllCCS[M+Na-2H]-149.032859911
AllCCS[M+HCOO]-149.132859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indoleCOC1=CC2=C(NC3=C2CCNC3)C=C13241.9Standard polar33892256
6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indoleCOC1=CC2=C(NC3=C2CCNC3)C=C12063.5Standard non polar33892256
6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indoleCOC1=CC2=C(NC3=C2CCNC3)C=C12252.0Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole,1TMS,isomer #1COC1=CC=C2C(=C1)C1=C(CNCC1)N2[Si](C)(C)C2238.1Semi standard non polar33892256
6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole,1TMS,isomer #1COC1=CC=C2C(=C1)C1=C(CNCC1)N2[Si](C)(C)C2002.0Standard non polar33892256
6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole,1TMS,isomer #1COC1=CC=C2C(=C1)C1=C(CNCC1)N2[Si](C)(C)C2636.9Standard polar33892256
6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole,1TMS,isomer #2COC1=CC=C2[NH]C3=C(CCN([Si](C)(C)C)C3)C2=C12284.4Semi standard non polar33892256
6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole,1TMS,isomer #2COC1=CC=C2[NH]C3=C(CCN([Si](C)(C)C)C3)C2=C12200.5Standard non polar33892256
6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole,1TMS,isomer #2COC1=CC=C2[NH]C3=C(CCN([Si](C)(C)C)C3)C2=C12740.8Standard polar33892256
6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole,2TMS,isomer #1COC1=CC=C2C(=C1)C1=C(CN([Si](C)(C)C)CC1)N2[Si](C)(C)C2261.3Semi standard non polar33892256
6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole,2TMS,isomer #1COC1=CC=C2C(=C1)C1=C(CN([Si](C)(C)C)CC1)N2[Si](C)(C)C2280.7Standard non polar33892256
6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole,2TMS,isomer #1COC1=CC=C2C(=C1)C1=C(CN([Si](C)(C)C)CC1)N2[Si](C)(C)C2522.0Standard polar33892256
6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole,1TBDMS,isomer #1COC1=CC=C2C(=C1)C1=C(CNCC1)N2[Si](C)(C)C(C)(C)C2431.8Semi standard non polar33892256
6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole,1TBDMS,isomer #1COC1=CC=C2C(=C1)C1=C(CNCC1)N2[Si](C)(C)C(C)(C)C2248.0Standard non polar33892256
6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole,1TBDMS,isomer #1COC1=CC=C2C(=C1)C1=C(CNCC1)N2[Si](C)(C)C(C)(C)C2725.5Standard polar33892256
6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole,1TBDMS,isomer #2COC1=CC=C2[NH]C3=C(CCN([Si](C)(C)C(C)(C)C)C3)C2=C12526.6Semi standard non polar33892256
6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole,1TBDMS,isomer #2COC1=CC=C2[NH]C3=C(CCN([Si](C)(C)C(C)(C)C)C3)C2=C12420.2Standard non polar33892256
6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole,1TBDMS,isomer #2COC1=CC=C2[NH]C3=C(CCN([Si](C)(C)C(C)(C)C)C3)C2=C12933.9Standard polar33892256
6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole,2TBDMS,isomer #1COC1=CC=C2C(=C1)C1=C(CN([Si](C)(C)C(C)(C)C)CC1)N2[Si](C)(C)C(C)(C)C2671.8Semi standard non polar33892256
6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole,2TBDMS,isomer #1COC1=CC=C2C(=C1)C1=C(CN([Si](C)(C)C(C)(C)C)CC1)N2[Si](C)(C)C(C)(C)C2704.1Standard non polar33892256
6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole,2TBDMS,isomer #1COC1=CC=C2C(=C1)C1=C(CN([Si](C)(C)C(C)(C)C)CC1)N2[Si](C)(C)C(C)(C)C2757.3Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole GC-MS (Non-derivatized) - 70eV, Positivesplash10-0kg9-0910000000-77b8f54024af3eb8eb502021-09-23Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole 10V, Positive-QTOFsplash10-0udi-0090000000-ee2fb06e46c3edc2e07a2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole 20V, Positive-QTOFsplash10-0udi-0290000000-ba2d61d32c8e7b2bf0fb2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole 40V, Positive-QTOFsplash10-0fkc-0900000000-f94982500c88bc856f292021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole 10V, Negative-QTOFsplash10-0udi-0090000000-53c3fa4c5460be246d0c2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole 20V, Negative-QTOFsplash10-0udi-0290000000-40619b6a831054886c992021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 6-Methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole 40V, Negative-QTOFsplash10-00kp-2900000000-ce4c637c30161c614c0a2021-10-12Wishart 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 ID1797
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem CompoundNot Available
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 ]