Record Information
Version1.0
Creation Date2016-09-30 22:35:47 UTC
Update Date2020-06-04 20:20:11 UTC
BMDB IDBMDB0000738
Secondary Accession Numbers
  • BMDB00738
Metabolite Identification
Common NameIndole
DescriptionIndole, also known as 2,3-benzopyrrole or indol, belongs to the class of organic compounds known as indoles. Indoles are compounds containing an indole moiety, which consists of pyrrole ring fused to benzene to form 2,3-benzopyrrole. Indole exists in all living species, ranging from bacteria to plants to humans. Based on a literature review a significant number of articles have been published on Indole.
Structure
Thumb
Synonyms
ValueSource
2,3-BenzopyrroleChEBI
indolChEBI
1-AzaindeneHMDB
1-BenzazoleHMDB
Benzo[b]pyrroleHMDB
KetoleHMDB
IndoleHMDB
Chemical FormulaC8H7N
Average Molecular Weight117.1479
Monoisotopic Molecular Weight117.057849229
IUPAC Name1H-indole
Traditional Nameindole
CAS Registry Number120-72-9
SMILES
N1C=CC2=C1C=CC=C2
InChI Identifier
InChI=1S/C8H7N/c1-2-4-8-7(3-1)5-6-9-8/h1-6,9H
InChI KeySIKJAQJRHWYJAI-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as indoles. Indoles are compounds containing an indole moiety, which consists of pyrrole ring fused to benzene to form 2,3-benzopyrrole.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassIndoles and derivatives
Sub ClassIndoles
Direct ParentIndoles
Alternative Parents
Substituents
  • Indole
  • Benzenoid
  • Heteroaromatic compound
  • Pyrrole
  • Azacycle
  • Organic nitrogen compound
  • Organopnictogen compound
  • Hydrocarbon derivative
  • Organonitrogen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Ontology
StatusDetected and Quantified
Origin
  • Endogenous
  • Exogenous
BiofunctionNot Available
ApplicationNot Available
Cellular locations
  • Cell membrane
  • Membrane
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point52.5 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility3.56 mg/mLNot Available
LogP2.14HANSCH,C ET AL. (1995)
Predicted Properties
PropertyValueSource
logP2.29ALOGPS
logP2.07ChemAxon
logS-1.3ALOGPS
pKa (Strongest Acidic)16.44ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count0ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area15.79 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity37.14 m³·mol⁻¹ChemAxon
Polarizability12.82 ųChemAxon
Number of Rings2ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Biological Properties
Cellular Locations
  • Cell membrane
  • Membrane
Biospecimen Locations
  • Epidermis
  • Fibroblasts
  • Intestine
  • Neuron
  • Ruminal Fluid
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
EpidermisExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
FibroblastsExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
IntestineExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
NeuronExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
Ruminal FluidDetected and Quantified200 +/- 100 uMNot SpecifiedBoth
Normal
details
Abnormal Concentrations
Not Available
HMDB IDHMDB0000738
DrugBank IDDB04532
Phenol Explorer Compound IDNot Available
FooDB IDFDB012008
KNApSAcK IDC00001418
Chemspider ID776
KEGG Compound IDC00463
BioCyc IDINDOLE
BiGG IDNot Available
Wikipedia LinkIndole
METLIN ID286
PubChem Compound798
PDB IDNot Available
ChEBI ID16881
References
Synthesis ReferenceGrigoleit, Georg; Oberkobusch, Rudolf; Collin, Gerd. Indole from 2-ethylaniline. Ger. Offen. (1973), 6 pp.
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available