Agent Name

Indole

CAS Number

120-72-9

Formula

C8-H7-N

Major Category

Nitrogen Compounds

Synonyms

1-Azaindene; 1-Benzazole; 1-Benzo(b)pyrrole; 1H-Indole; 2,3-Benzopyrrole; Benzopyrrole; INDOLE; Indol [German]; Indole (natural); Ketole; [ChemIDplus]

Category

Indoles

Description

White to yellowish solid with an unpleasant odor; Pleasant odor in dilute solutions; Turns red when exposed to light or air; [Hawley] White or yellow crystalline powder; [MSDSonline]

Sources/Uses

Found in feces, neroli oil, jasmine oil, orange-blossom oil, certain flowers, tobacco smoke, and coal tar; Used in perfumery, flavoring, and as chemical reagent, intermediate, and feedstock; [HSDB]

Comments

External application to rabbit eyes scored 8 on a scale of 1-10 (10 being most severe) for degree of injury after 24 hours; [HSDB] Safe when used as a flavoring agent in food; [JECFA] A severe eye irritant; [RTECS]

Exposure Assessment
Vapor Pressure

0.01 mm Hg

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