Strong, lemon-like, found on Litsea cubeba. Widely used in many types of accords, mainly in citrus fragrances. Gives freshness and lift.

General Information

CategoryAromatic Compound
IUPAC Name3,7-dimethylocta-2,6-dienal
CAS Number5392-40-5
Molecular Weight152.23 g/mol

Organoleptic Properties

Odor Family
Odor Strength
Odor DescriptionFresh, Green, Juicy, Lemon, Lemon Peel, Sharp, Sweet, Tart
Substantivity12 hours at 100%

Physical Properties

AppearanceColorless to pale yellow clear liquid (est)
Specific Gravity0.885 to 0.891 @ 25 °C.
Pounds per Gallon7.364 to 7.414
Refractive Index1.486 to 1.49 @ 20 °C.
Vapor Pressure0.2 mmHg @ 20 °C.
Vapor Density5.2 ( Air = 1 )
Boiling Point228 to 229 °C. @ 760 mm Hg
Flash Point195 °F. TCC ( 90 °C. )
Acid Value3 max. KOH/g
Shelf Life24 months if stored properly
StorageStore in cool, dry place in tightly sealed containers, protected from heat and light.
Soluble inDipropylene glycol
Fixed oils
Paraffin oil
Propylene glycol
Water, 1340 mg/L @ 25 °C (exp)
Insoluble inGlycerin


CategoryFlavor and fragrance agents
Critical EffectSensitization
Usage limits in the finished product
Cat. 1Category 1:0.11 %
Cat. 2Category 2:0.032 %
Cat. 3Category 3:0.1 %
Cat. 4Category 4:0.6 %
Cat. 5ACategory 5A:0.15 %
Cat. 5BCategory 5B:0.15 %
Cat. 5CCategory 5C:0.15 %
Cat. 5DCategory 5D:0.051 %
Cat. 6Category 6:0.35 %
Cat. 7ACategory 7A:0.2 %
Cat. 7BCategory 7B:0.2 %
Cat. 8Category 8:0.051 %
Cat. 9Category 9:1.2 %
Cat. 10ACategory 10A:1.2 %
Cat. 10BCategory 10B:4.2 %
Cat. 11ACategory 11A:0.051 %
Cat. 11BCategory 11B:0.051 %
Cat. 12Category 12:No Restriction

Safety Information

PictogramsGHS07: Harmful
Hazard StatementH315 - Causes skin irritation
H317 - May cause an allergic skin reaction
Precautionary StatementP261 - Avoid breathing dust/fumes/gas/mist/vapours/spray
P264 - Wash … thoroughly after handling
P272 - Contaminated work clothing should not be allowed out of the workplace
P280 - Wear protective gloves/protective clothing/eye protection/face protection
P302 + 352 - IF ON SKIN: Wash with plenty of water/…
P333 + 313 - If skin irritation or a rash occurs: Get medical advice/attention
P362 - Take off contaminated clothing
P501 - Dispose of contents/container in accordance with local/regional/national/international regulations.
R-phrasesR38 - Irritating to skin
R43 - May cause sensitisation by skin contact
S-phrasesS2 - Keep out of the reach of children
S24/25 - Avoid contact with skin and eyes
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S37/39 - Wear suitable gloves and eye/face protection
Europe Standard HazardXi - Irritant


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