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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-10 22:49:23 UTC
Update Date2021-09-26 22:54:26 UTC
HMDB IDHMDB0245770
Secondary Accession NumbersNone
Metabolite Identification
Common Namealpha-Methyltryptamine
Descriptionalpha-Methyltryptamine, also known as 3-(2-aminopropyl)indole or indopan, belongs to the class of organic compounds known as 3-alkylindoles. 3-alkylindoles are compounds containing an indole moiety that carries an alkyl chain at the 3-position. Based on a literature review very few articles have been published on alpha-Methyltryptamine. This compound has been identified in human blood as reported by (PMID: 31557052 ). Alpha-methyltryptamine is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically alpha-Methyltryptamine 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
1-(1H-indol-3-yl)-2-PropanamineChEBI
3-(2-Aminopropyl)indoleChEBI
alpha-Methyl-1H-indole-3-ethanamineChEBI
alpha-Methyl-3-indoleethanamineChEBI
alpha-Methyl-beta-indoleethylamineChEBI
DL-3-(2-Aminopropyl)indoleChEBI
IndopanChEBI
a-Methyl-1H-indole-3-ethanamineGenerator
Α-methyl-1H-indole-3-ethanamineGenerator
a-Methyl-3-indoleethanamineGenerator
Α-methyl-3-indoleethanamineGenerator
a-Methyl-b-indoleethylamineGenerator
Α-methyl-β-indoleethylamineGenerator
a-MethyltryptamineGenerator
Α-methyltryptamineGenerator
Chemical FormulaC11H14N2
Average Molecular Weight174.2423
Monoisotopic Molecular Weight174.115698458
IUPAC Name1-(1H-indol-3-yl)propan-2-amine
Traditional Nameα-methyltryptamine
CAS Registry NumberNot Available
SMILES
CC(N)CC1=CNC2=CC=CC=C12
InChI Identifier
InChI=1S/C11H14N2/c1-8(12)6-9-7-13-11-5-3-2-4-10(9)11/h2-5,7-8,13H,6,12H2,1H3
InChI KeyQSQQQURBVYWZKJ-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as 3-alkylindoles. 3-Alkylindoles are compounds containing an indole moiety that carries an alkyl chain at the 3-position.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassIndoles and derivatives
Sub ClassIndoles
Direct Parent3-alkylindoles
Alternative Parents
Substituents
  • 3-alkylindole
  • Aralkylamine
  • Benzenoid
  • Substituted pyrrole
  • Heteroaromatic compound
  • Pyrrole
  • Azacycle
  • Organic nitrogen compound
  • Organopnictogen compound
  • Hydrocarbon derivative
  • Primary amine
  • Organonitrogen compound
  • Primary aliphatic amine
  • Amine
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
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
logP2ALOGPS
logP1.9ChemAxon
logS-2.2ALOGPS
pKa (Strongest Acidic)17.14ChemAxon
pKa (Strongest Basic)9.96ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area41.81 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity54.79 m³·mol⁻¹ChemAxon
Polarizability20.19 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-2H]-172.58230932474
DeepCCS[M+Na]+148.12130932474
AllCCS[M+H]+139.332859911
AllCCS[M+H-H2O]+134.932859911
AllCCS[M+NH4]+143.432859911
AllCCS[M+Na]+144.632859911
AllCCS[M-H]-142.232859911
AllCCS[M+Na-2H]-142.732859911
AllCCS[M+HCOO]-143.432859911

Predicted Retention Times

Underivatized

Chromatographic MethodRetention TimeReference
Predicted by Siyang on May 30, 202210.2577 minutes33406817
Predicted by Siyang using ReTip algorithm on June 8, 20223.64 minutes32390414
Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid1131.5 seconds40023050
Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid322.4 seconds40023050
Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid120.1 seconds40023050
Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid177.5 seconds40023050
RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid141.6 seconds40023050
Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid307.2 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 Acid291.0 seconds40023050
HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate)146.8 seconds40023050
UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid789.3 seconds40023050
BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid320.2 seconds40023050
UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid845.5 seconds40023050
SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid264.9 seconds40023050
RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid259.3 seconds40023050
MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate398.3 seconds40023050
KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA313.5 seconds40023050
Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water87.3 seconds40023050

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
alpha-MethyltryptamineCC(N)CC1=CNC2=CC=CC=C122915.4Standard polar33892256
alpha-MethyltryptamineCC(N)CC1=CNC2=CC=CC=C121732.4Standard non polar33892256
alpha-MethyltryptamineCC(N)CC1=CNC2=CC=CC=C121842.2Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
alpha-Methyltryptamine,1TMS,isomer #1CC(CC1=C[NH]C2=CC=CC=C12)N[Si](C)(C)C1883.7Semi standard non polar33892256
alpha-Methyltryptamine,1TMS,isomer #1CC(CC1=C[NH]C2=CC=CC=C12)N[Si](C)(C)C1843.3Standard non polar33892256
alpha-Methyltryptamine,1TMS,isomer #1CC(CC1=C[NH]C2=CC=CC=C12)N[Si](C)(C)C2277.4Standard polar33892256
alpha-Methyltryptamine,1TMS,isomer #2CC(N)CC1=CN([Si](C)(C)C)C2=CC=CC=C121890.1Semi standard non polar33892256
alpha-Methyltryptamine,1TMS,isomer #2CC(N)CC1=CN([Si](C)(C)C)C2=CC=CC=C121936.7Standard non polar33892256
alpha-Methyltryptamine,1TMS,isomer #2CC(N)CC1=CN([Si](C)(C)C)C2=CC=CC=C122351.6Standard polar33892256
alpha-Methyltryptamine,2TMS,isomer #1CC(CC1=CN([Si](C)(C)C)C2=CC=CC=C12)N[Si](C)(C)C1953.0Semi standard non polar33892256
alpha-Methyltryptamine,2TMS,isomer #1CC(CC1=CN([Si](C)(C)C)C2=CC=CC=C12)N[Si](C)(C)C1973.7Standard non polar33892256
alpha-Methyltryptamine,2TMS,isomer #1CC(CC1=CN([Si](C)(C)C)C2=CC=CC=C12)N[Si](C)(C)C2100.4Standard polar33892256
alpha-Methyltryptamine,2TMS,isomer #2CC(CC1=C[NH]C2=CC=CC=C12)N([Si](C)(C)C)[Si](C)(C)C2084.6Semi standard non polar33892256
alpha-Methyltryptamine,2TMS,isomer #2CC(CC1=C[NH]C2=CC=CC=C12)N([Si](C)(C)C)[Si](C)(C)C2074.6Standard non polar33892256
alpha-Methyltryptamine,2TMS,isomer #2CC(CC1=C[NH]C2=CC=CC=C12)N([Si](C)(C)C)[Si](C)(C)C2266.6Standard polar33892256
alpha-Methyltryptamine,3TMS,isomer #1CC(CC1=CN([Si](C)(C)C)C2=CC=CC=C12)N([Si](C)(C)C)[Si](C)(C)C2192.4Semi standard non polar33892256
alpha-Methyltryptamine,3TMS,isomer #1CC(CC1=CN([Si](C)(C)C)C2=CC=CC=C12)N([Si](C)(C)C)[Si](C)(C)C2166.7Standard non polar33892256
alpha-Methyltryptamine,3TMS,isomer #1CC(CC1=CN([Si](C)(C)C)C2=CC=CC=C12)N([Si](C)(C)C)[Si](C)(C)C2136.4Standard polar33892256
alpha-Methyltryptamine,1TBDMS,isomer #1CC(CC1=C[NH]C2=CC=CC=C12)N[Si](C)(C)C(C)(C)C2123.5Semi standard non polar33892256
alpha-Methyltryptamine,1TBDMS,isomer #1CC(CC1=C[NH]C2=CC=CC=C12)N[Si](C)(C)C(C)(C)C2047.8Standard non polar33892256
alpha-Methyltryptamine,1TBDMS,isomer #1CC(CC1=C[NH]C2=CC=CC=C12)N[Si](C)(C)C(C)(C)C2386.3Standard polar33892256
alpha-Methyltryptamine,1TBDMS,isomer #2CC(N)CC1=CN([Si](C)(C)C(C)(C)C)C2=CC=CC=C122105.1Semi standard non polar33892256
alpha-Methyltryptamine,1TBDMS,isomer #2CC(N)CC1=CN([Si](C)(C)C(C)(C)C)C2=CC=CC=C122113.6Standard non polar33892256
alpha-Methyltryptamine,1TBDMS,isomer #2CC(N)CC1=CN([Si](C)(C)C(C)(C)C)C2=CC=CC=C122435.5Standard polar33892256
alpha-Methyltryptamine,2TBDMS,isomer #1CC(CC1=CN([Si](C)(C)C(C)(C)C)C2=CC=CC=C12)N[Si](C)(C)C(C)(C)C2395.7Semi standard non polar33892256
alpha-Methyltryptamine,2TBDMS,isomer #1CC(CC1=CN([Si](C)(C)C(C)(C)C)C2=CC=CC=C12)N[Si](C)(C)C(C)(C)C2398.3Standard non polar33892256
alpha-Methyltryptamine,2TBDMS,isomer #1CC(CC1=CN([Si](C)(C)C(C)(C)C)C2=CC=CC=C12)N[Si](C)(C)C(C)(C)C2342.3Standard polar33892256
alpha-Methyltryptamine,2TBDMS,isomer #2CC(CC1=C[NH]C2=CC=CC=C12)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2554.1Semi standard non polar33892256
alpha-Methyltryptamine,2TBDMS,isomer #2CC(CC1=C[NH]C2=CC=CC=C12)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2490.0Standard non polar33892256
alpha-Methyltryptamine,2TBDMS,isomer #2CC(CC1=C[NH]C2=CC=CC=C12)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2418.9Standard polar33892256
alpha-Methyltryptamine,3TBDMS,isomer #1CC(CC1=CN([Si](C)(C)C(C)(C)C)C2=CC=CC=C12)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2835.2Semi standard non polar33892256
alpha-Methyltryptamine,3TBDMS,isomer #1CC(CC1=CN([Si](C)(C)C(C)(C)C)C2=CC=CC=C12)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2771.1Standard non polar33892256
alpha-Methyltryptamine,3TBDMS,isomer #1CC(CC1=CN([Si](C)(C)C(C)(C)C)C2=CC=CC=C12)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2420.8Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - alpha-Methyltryptamine GC-MS (Non-derivatized) - 70eV, Positivesplash10-0006-8900000000-3e6ea7e25929a31274e92017-08-28Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - alpha-Methyltryptamine 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 - alpha-Methyltryptamine 10V, Positive-QTOFsplash10-056r-0900000000-c5df07dbd39adad8b23b2017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - alpha-Methyltryptamine 20V, Positive-QTOFsplash10-0a6r-0900000000-884f9728d3ba8b5645c32017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - alpha-Methyltryptamine 40V, Positive-QTOFsplash10-00l6-3900000000-c5e4a82f4f763ab31ab72017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - alpha-Methyltryptamine 10V, Negative-QTOFsplash10-00di-0900000000-aa836f2a0177d0e17bfb2017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - alpha-Methyltryptamine 20V, Negative-QTOFsplash10-00di-0900000000-f433f885904fad853c622017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - alpha-Methyltryptamine 40V, Negative-QTOFsplash10-0a4i-2900000000-14c0ba2d6e24e7ad938d2017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - alpha-Methyltryptamine 10V, Positive-QTOFsplash10-056r-0900000000-cb4ec4331e5379fafa912021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - alpha-Methyltryptamine 20V, Positive-QTOFsplash10-0a4i-1900000000-364e71a7e6a836f99db92021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - alpha-Methyltryptamine 40V, Positive-QTOFsplash10-0fsl-5900000000-ec55cdad08149c7a24322021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - alpha-Methyltryptamine 10V, Negative-QTOFsplash10-00di-0900000000-b359d04dc6938a3508b32021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - alpha-Methyltryptamine 20V, Negative-QTOFsplash10-00e9-0900000000-5d01ba22939979fbda9c2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - alpha-Methyltryptamine 40V, Negative-QTOFsplash10-014i-0900000000-cc42fe05352137cdc8bf2021-10-12Wishart 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 IDDB01446
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID8930
KEGG Compound IDC20127
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkAlpha-Methyltryptamine
METLIN IDNot Available
PubChem Compound9287
PDB IDNot Available
ChEBI ID59020
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 ]