Indole Properties, Molecular Formula, Applications - WorldOfChemicals

Indole Properties


Molecule 3D Structure Image
Molecule Structure Image



Indole is an aromatic heterocyclic organic compound. It has a bicyclic structure, consisting of a six-membered benzene ring fused to a five-membered nitrogen-containing pyrrole ring. It is a popular component of fragrances and the precursor to many pharmaceuticals. Compounds that contain an indole ring are called indoles. The indolic amino acid tryptophan is the precursor of the neurotransmitter serotonin.

Chemical Properties

Acidity 16.2
Appearance White Solid
Basicity 17.6
Boiling Point 253–254°C
CAS Number 120-72-9
Crystal Structure Pna21
Density 1.1747 g/cm3
Dipole Moment 2.11 D
EINECS Number 204-420-7
IUPAC Name 1H-Indole
InChI 1/C8H7N/c1-2-4-8-7(3-1)5-6-9-8/h1-6,9H
Melting Point 52–54 °C
Molar Mass 117.14 g/mol
Molecular Formula C8H7N
Molecular Shape Planar
NFPA 704 H-2,F-1,R-0,C-NA
RTECS Number NL2450000
Refractive 1.681 n/D
Solubility 0.19 g/100 ml
Synonyms 2,3-Benzopyrrole;1-Benzo(b)pyrrole;1H-Indole;1-Azaindene;Benzopyrrole;2, 3-Benzopyrrole;Indole;1-Benzazole;2,3-Benzopyrole;Ketole;Benzo[b]pyrrole;3-Benzopyrrole uses cookies to ensure that we give you the best experience on our website. By using this site, you agree to our Privacy Policy and our Terms of Use. X