C8H7N
117.15 g/mol
Flavor & FragranceDanger
Indole
CAS120-72-9EC204-420-7
Category
Flavor & Fragrance
Compound Class
Heterocycle
Primary Use
Perfumery and flavoring agent
Indole is an organic compound with a distinctive odor, found naturally in various sources such as jasmine and orange-blossom oils, as well as in coal tar and feces. It is widely used in perfumery and as a flavoring agent.
PerfumeryFlavoring agentChemical reagent
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
ApplicationSame Use
Methyl phenylacetate
CAS101-41-7
Perfumery and flavoring agent
ReferenceSame Category
2-methylbenzothiazole
CAS120-75-2
flavor and fragrance ingredient
ReferenceSame Category
3-(3,4-methylenedioxyphenyl)-2-methylpropanal
CAS1205-17-0
fragrance ingredient
ReferenceSame Category
Ethyl vanillin
CAS121-32-4
flavor and fragrance ingredient
ReferenceSame Category
Vanillin
CAS121-33-5
Flavoring and fragrance agent
Referencestereoisomer of
2-Deuteroindole
CAS3972-52-9
research compound
Referencestereoisomer of
3-deuterioindole
CAS57754-36-6
research compound
Referencestereoisomer of
1,2,3,4,5,6,7-heptadeuterioindole
CAS73509-20-3
research compound
Safety Reference
Danger
H302Harmful if swallowed
H311Toxic in contact with skin
H318Causes serious eye damage
H319Causes serious eye irritation
Customs Tariff Classification
The international HS code for Indole (CAS 120-72-9) is 2933.99.
HS code (international, 6-digit)
2933.99
EU CN code (8-digit)
2933 99 20
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
1H-indole
InChIKey
SIKJAQJRHWYJAI-UHFFFAOYSA-N
SMILES
C1=CC=C2C(=C1)C=CN2
Synonyms (32)
- IND
- INDOLUM
- 1-Azaindene
- 1-Benzazole
- 1-Benzo(b)pyrrole
- 185l
- 1H-Benzo[b]pyrrole
- 1H-Indole
- 1H-Indole (9CI)
- 2,3-Benzopyrole
- 2,3-Benzopyrrole
- Benzo[b]pyrrole
- Benzopyrrole
- Caswell No. 498B
- Dolasetron Impurity 6
- FEMA No. 2593
- INDOLE BENZO-PYRROLE
- Indol
- Indol [German]
- Indole (8CI)
- Indole (natural)
- Indole, 7
- Indole, puriss., >=98.5% (GC)
- Ketole
- benzazole
- indole
- mono-indole
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