C5H10O
86.13 g/mol
Flavor & FragranceDanger
3-METHYL-2-BUTEN-1-OL
CAS556-82-1EC209-141-4
Category
Flavor & Fragrance
Compound Class
Alcohol
Primary Use
flavoring agent and fragrance intermediate
Prenol, also known as 3-methyl-2-buten-1-ol, is an alkenyl alcohol used primarily as a flavoring agent and a fragrance intermediate. It also serves as an intermediate in the production of citral and finds application in cosmetics.
flavoring agentfragrance intermediateintermediate for citral
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
ReferenceSame Category
2,5-dimethyl-2,5-dihydroxy-1,4-dithiane
CAS55704-78-4
flavor and fragrance ingredient
ReferenceSame Category
Ε-decalactone
CAS5579-78-2
flavor and fragrance ingredient
ReferenceSame Category
Sclareol Glycol
CAS55881-96-4
fragrance ingredient
ReferenceSame Category
Ethyl 4-methyloctanoate
CAS56196-53-3
Flavor and fragrance ingredient
Safety Reference
Danger
H226Flammable liquid and vapour
H302Harmful if swallowed
H314Causes severe skin burns and eye damage
H315Causes skin irritation
H318Causes serious eye damage
H319Causes serious eye irritation
H371May cause damage to organs
H402Harmful to aquatic life
Customs Tariff Classification
The international HS code for 3-METHYL-2-BUTEN-1-OL (CAS 556-82-1) is 2905.29.
HS code (international, 6-digit)
2905.29
EU CN code (8-digit)
2905 29 90
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
3-methylbut-2-en-1-ol
InChIKey
ASUAYTHWZCLXAN-UHFFFAOYSA-N
SMILES
CC(=CCO)C
Synonyms (20)
- 2-Buten-1-ol, 3-methyl-
- 2-Butenol, 3-methyl
- 2-hydroxy-2-methyl-3-butene
- 2-methyl-2-buten-4-ol
- 3,3-Dimethylallyl alcohol
- 3-METHYL-2-BUTEN-1-OL
- 3-Methyl-2-butene-1-ol
- 3-Methyl-2-butenol
- 3-Methyl-2-butenyl alcohol
- 3-Methylbut-2-en-1-ol
- 3-Methylcrotyl alcohol
- 3-methylbut-2-enol
- Dimethylallyl alcohol
- FEMA 3647
- Prenol
- Prenyl alcohol
- butenol methyl
- gamma-Methylcrotyl Alcohol
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