Record Information
Version1.0
Creation Date2014-09-11 05:17:58 UTC
Update Date2026-04-17 19:47:02 UTC
Accession NumberCHEM003776
Identification
Common NameIndene
ClassSmall Molecule
Description
Indene is a flammable polycyclic hydrocarbon. It is composed of a benzene ring fused with a cyclopentene ring. This aromatic liquid is colorless although samples often are pale yellow. The principal industrial use of indene is in the production of indene/coumarone thermoplastic resins.
Contaminant Sources
  • HPV EPA Chemicals
  • OECD HPV Chemicals
  • T3DB toxins
  • ToxCast & Tox21 Chemicals
Contaminant Type
  • Industrial/Workplace Toxin
  • Organic Compound
  • Plastic
  • Synthetic Compound
Chemical Structure
Synonyms
ValueSource
IndenChEBI
IndonaphtheneChEBI
Chemical FormulaC9H8
Average Molecular Mass116.160 g/mol
Monoisotopic Mass116.063 g/mol
CAS Registry Number95-13-6
IUPAC Name1H-indene
Traditional Nameindene
SMILESC1C=CC2=CC=CC=C12
InChI IdentifierInChI=1S/C9H8/c1-2-5-9-7-3-6-8(9)4-1/h1-6H,7H2
InChI KeyYBYIRNPNPLQARY-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as indenes and isoindenes. Indenes and isoindenes are compounds containing an indene moiety(which consists of a cyclopentadiene fused to a benzene ring), or a isoindene moiety (which consists of a cyclopentadiene fused to cyclohexadiene ring).
KingdomOrganic compounds
Super ClassBenzenoids
ClassIndenes and isoindenes
Sub ClassNot Available
Direct ParentIndenes and isoindenes
Alternative Parents
Substituents
  • Indene
  • Aromatic hydrocarbon
  • Polycyclic hydrocarbon
  • Cyclic olefin
  • Unsaturated hydrocarbon
  • Olefin
  • Hydrocarbon
  • Aromatic homopolycyclic compound
Molecular FrameworkAromatic homopolycyclic compounds
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Membrane
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
ApplicationsNot Available
Biological RolesNot Available
Chemical RolesNot Available
Physical Properties
StateLiquid
AppearanceNot Available
Experimental Properties
PropertyValue
Melting Point-1.8°C
Boiling Point182°C
SolubilityNot Available
Predicted Properties
PropertyValueSource
Water Solubility0.097 g/LALOGPS
logP3.04ALOGPS
logP2.7ChemAxon
logS-3.1ALOGPS
pKa (Strongest Acidic)19.11ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count0ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area0 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity40.06 m³·mol⁻¹ChemAxon
Polarizability13.38 ųChemAxon
Number of Rings2ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectra
Toxicity Profile
Route of ExposureNot Available
Mechanism of ToxicityNot Available
MetabolismNot Available
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesIt is composed of a benzene ring fused with a cyclopentene ring.
Minimum Risk LevelNot Available
Health EffectsNot Available
SymptomsNot Available
TreatmentNot Available
Concentrations
Not Available
External Links
DrugBank IDNot Available
HMDB IDHMDB0253451
FooDB IDNot Available
Phenol Explorer IDNot Available
KNApSAcK IDC00013549
BiGG IDNot Available
BioCyc IDNot Available
METLIN IDNot Available
PDB IDNot Available
Wikipedia LinkIndene
Chemspider ID6949
ChEBI ID41921
PubChem Compound ID7219
Kegg Compound IDNot Available
YMDB IDNot Available
ECMDB IDNot Available
References
Synthesis Reference

Hisatake Sato, Masaharu Makino, “Method for preparing light-colored indene-coumarone resin.” U.S. Patent US4946915, issued July, 1930.

MSDSNot Available
General References
1. https://www.ncbi.nlm.nih.gov/pubmed/?term=24217495
2. https://www.ncbi.nlm.nih.gov/pubmed/?term=24804069