C12H22O
182.3 g/mol
Flavor & FragranceWarning
(Z)-3,4,5,6,6-Pentamethylhept-3-en-2-one
CAS81786-73-4EC279-822-9
Category
Flavor & Fragrance
Compound Class
Other
Primary Use
Fragrance ingredient
Pentamethylheptenone is a fragrance ingredient with a ketone structure, known for its use in consumer products. It is identified as (Z)-3,4,5,6,6-pentamethylhept-3-en-2-one and is commonly incorporated into formulations for auto products and household items.
Fragrance ingredient in consumer productsUsed in auto productsUsed in inside-the-home products
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
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6,6-Dimethoxy-2,5,5-trimethylhex-2-ene
CAS67674-46-8
fragrance ingredient
ApplicationSame Use
Ionone
CAS8013-90-9
Fragrance ingredient
ReferenceSame Category
Diisopentyl succinate
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Fragrance and flavor ingredient
ReferenceSame Category
5-methyl-2-hepten-4-one
CAS81925-81-7
flavor compound in food
ReferenceSame Category
4-pentenol
CAS821-09-0
flavoring agent
ReferenceSame Category
2-nonanone
CAS821-55-6
Flavor and fragrance ingredient
Safety Reference
Warning
H317May cause an allergic skin reaction
H411Toxic to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for (Z)-3,4,5,6,6-Pentamethylhept-3-en-2-one (CAS 81786-73-4) is 2914.19.
HS code (international, 6-digit)
2914.19
EU CN code (8-digit)
2914 19 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
(Z)-3,4,5,6,6-pentamethylhept-3-en-2-one
InChIKey
IXIYWQIFBRZMNR-HJWRWDBZSA-N
SMILES
CC(/C(=C(/C)\C(=O)C)/C)C(C)(C)C
Synonyms (9)
- (3Z)-pentamethylheptenone
- (Z)-WOODY AMYLENE
- Acetyl diisoamylene
- Pentamethylheptenone, (3Z)-
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