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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 11:53:33 UTC
Update Date2021-09-26 23:06:40 UTC
HMDB IDHMDB0253446
Secondary Accession NumbersNone
Metabolite Identification
Common NameIndalpine
DescriptionIndalpine 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. Indalpine is a very strong basic compound (based on its pKa). It was initially marketed by Pharmuka. Indalpine was one of the first selective serotonin reuptake inhibitors to reach the American market. However, after the emergence of widespread concern regarding adverse effects caused by SSRIs, and reported hematological effects caused by Indalpine, it was abruptly withdrawn from the US market. This compound has been identified in human blood as reported by (PMID: 31557052 ). Indalpine is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Indalpine 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
UpsteneChEMBL, MeSH
4-(2-(3-Indolyl)ethyl)piperidineMeSH
Indalpine monohydrochlorideMeSH
(3-Indolyl-2-ethyl)piperidineMeSH
Chemical FormulaC15H20N2
Average Molecular Weight228.3327
Monoisotopic Molecular Weight228.16264865
IUPAC Name3-[2-(piperidin-4-yl)ethyl]-1H-indole
Traditional Nameindalpine
CAS Registry NumberNot Available
SMILES
C(CC1=CNC2=CC=CC=C12)C1CCNCC1
InChI Identifier
InChI=1S/C15H20N2/c1-2-4-15-14(3-1)13(11-17-15)6-5-12-7-9-16-10-8-12/h1-4,11-12,16-17H,5-10H2
InChI KeySADQVAVFGNTEOD-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
  • Piperidine
  • Substituted pyrrole
  • Benzenoid
  • Pyrrole
  • Heteroaromatic compound
  • Secondary aliphatic amine
  • Secondary amine
  • Azacycle
  • Organopnictogen compound
  • Organic nitrogen compound
  • Amine
  • Organonitrogen compound
  • Hydrocarbon derivative
  • 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
logP3.58ALOGPS
logP3.07ChemAxon
logS-4.3ALOGPS
pKa (Strongest Acidic)17.32ChemAxon
pKa (Strongest Basic)10.36ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area27.82 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity71.77 m³·mol⁻¹ChemAxon
Polarizability27.59 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-2H]-181.36530932474
DeepCCS[M+Na]+156.22430932474
AllCCS[M+H]+156.032859911
AllCCS[M+H-H2O]+151.932859911
AllCCS[M+NH4]+159.732859911
AllCCS[M+Na]+160.832859911
AllCCS[M-H]-163.132859911
AllCCS[M+Na-2H]-163.132859911
AllCCS[M+HCOO]-163.232859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
IndalpineC(CC1=CNC2=CC=CC=C12)C1CCNCC13047.8Standard polar33892256
IndalpineC(CC1=CNC2=CC=CC=C12)C1CCNCC12219.7Standard non polar33892256
IndalpineC(CC1=CNC2=CC=CC=C12)C1CCNCC12314.5Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Indalpine,1TMS,isomer #1C[Si](C)(C)N1C=C(CCC2CCNCC2)C2=CC=CC=C212300.9Semi standard non polar33892256
Indalpine,1TMS,isomer #1C[Si](C)(C)N1C=C(CCC2CCNCC2)C2=CC=CC=C212305.9Standard non polar33892256
Indalpine,1TMS,isomer #1C[Si](C)(C)N1C=C(CCC2CCNCC2)C2=CC=CC=C212827.9Standard polar33892256
Indalpine,1TMS,isomer #2C[Si](C)(C)N1CCC(CCC2=C[NH]C3=CC=CC=C23)CC12392.2Semi standard non polar33892256
Indalpine,1TMS,isomer #2C[Si](C)(C)N1CCC(CCC2=C[NH]C3=CC=CC=C23)CC12329.6Standard non polar33892256
Indalpine,1TMS,isomer #2C[Si](C)(C)N1CCC(CCC2=C[NH]C3=CC=CC=C23)CC12893.1Standard polar33892256
Indalpine,2TMS,isomer #1C[Si](C)(C)N1CCC(CCC2=CN([Si](C)(C)C)C3=CC=CC=C23)CC12436.7Semi standard non polar33892256
Indalpine,2TMS,isomer #1C[Si](C)(C)N1CCC(CCC2=CN([Si](C)(C)C)C3=CC=CC=C23)CC12451.2Standard non polar33892256
Indalpine,2TMS,isomer #1C[Si](C)(C)N1CCC(CCC2=CN([Si](C)(C)C)C3=CC=CC=C23)CC12758.4Standard polar33892256
Indalpine,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)N1C=C(CCC2CCNCC2)C2=CC=CC=C212538.5Semi standard non polar33892256
Indalpine,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)N1C=C(CCC2CCNCC2)C2=CC=CC=C212509.6Standard non polar33892256
Indalpine,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)N1C=C(CCC2CCNCC2)C2=CC=CC=C212932.9Standard polar33892256
Indalpine,1TBDMS,isomer #2CC(C)(C)[Si](C)(C)N1CCC(CCC2=C[NH]C3=CC=CC=C23)CC12634.4Semi standard non polar33892256
Indalpine,1TBDMS,isomer #2CC(C)(C)[Si](C)(C)N1CCC(CCC2=C[NH]C3=CC=CC=C23)CC12564.2Standard non polar33892256
Indalpine,1TBDMS,isomer #2CC(C)(C)[Si](C)(C)N1CCC(CCC2=C[NH]C3=CC=CC=C23)CC13062.4Standard polar33892256
Indalpine,2TBDMS,isomer #1CC(C)(C)[Si](C)(C)N1CCC(CCC2=CN([Si](C)(C)C(C)(C)C)C3=CC=CC=C23)CC12866.8Semi standard non polar33892256
Indalpine,2TBDMS,isomer #1CC(C)(C)[Si](C)(C)N1CCC(CCC2=CN([Si](C)(C)C(C)(C)C)C3=CC=CC=C23)CC12885.0Standard non polar33892256
Indalpine,2TBDMS,isomer #1CC(C)(C)[Si](C)(C)N1CCC(CCC2=CN([Si](C)(C)C(C)(C)C)C3=CC=CC=C23)CC12960.3Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Indalpine GC-MS (Non-derivatized) - 70eV, Positivesplash10-001i-9620000000-1fa89594f786498151e62017-08-28Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Indalpine 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 - Indalpine 10V, Positive-QTOFsplash10-004i-1290000000-b248ffb328e2836bd99c2017-07-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Indalpine 20V, Positive-QTOFsplash10-003s-7950000000-b27bdff651cc77b762812017-07-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Indalpine 40V, Positive-QTOFsplash10-001j-9600000000-aad09d3214ad763cd4492017-07-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Indalpine 10V, Negative-QTOFsplash10-004i-0090000000-498b4e7749ec084279f62017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Indalpine 20V, Negative-QTOFsplash10-004i-1090000000-c0d866ae216c098619de2017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Indalpine 40V, Negative-QTOFsplash10-02tc-9530000000-5caa0b5ad446f65ac6282017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Indalpine 10V, Positive-QTOFsplash10-004i-0090000000-edeaa3b4b0d2bc5c95b52021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Indalpine 20V, Positive-QTOFsplash10-004i-2290000000-3f48068e72f8fedb2b342021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Indalpine 40V, Positive-QTOFsplash10-052f-8910000000-e3509262d9062650999e2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Indalpine 10V, Negative-QTOFsplash10-004i-0090000000-f1bfa23995955ad58c1e2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Indalpine 20V, Negative-QTOFsplash10-004i-0090000000-132b77007b9dee368c042021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Indalpine 40V, Negative-QTOFsplash10-016u-1920000000-1cba1b5d9977dc57e7f72021-10-12Wishart 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 IDDB08953
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 LinkIndalpine
METLIN IDNot Available
PubChem Compound44668
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 ]