About this material
Methyl Pamplemousse, with its fresh bitterness, blends very well with citrus bases. It can also be used as a booster for vetiver accords.
Pamplemousse is a key ingredient in modern colognes.
Scent character
Highlights from the material’s listed odour profile.
Note position
Top note
Material character
A closer lookOdour strength
(recommend smelling in a 10.00 % solution or less)
Listed qualitative strength
Tenacity / substantivity
2 hour(s)
at 100%
Listed reference conditions
Fragrance development
Top note
Illustrative note development · no measured evaporation data
Molecular identity
C11H22O2
CAS-linked compound reference — 6,6-Dimethoxy-2,5,5-trimethylhex-2-ene
This compound record is linked to the explicitly recorded CAS number. It is not supplier confirmation of the supplied grade, purity, stereochemistry, isomer proportions or complete composition.
- Reference molecular weight
- 186.29 g/mol
- Reference IUPAC name
- 6,6-dimethoxy-2,5,5-trimethylhex-2-ene
More compound properties
Computed and structural reference properties for the named compound. These are not measured supplier specifications or properties of a complete dilution, mixture or batch.
- XLogP (computed)
- 3.2
- Exact mass (Da)
- 186.161979940
- Monoisotopic mass (Da)
- 186.161979940
- Topological polar surface area (Ų)
- 18.5
- Complexity
- 163
- Formal charge
- 0
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 2
- Rotatable bonds
- 5
- Heavy atoms
- 13
- Isotope atoms
- 0
- Atom stereocentres
- 0
- Bond stereocentres
- 0
- Covalent units
- 1
- SMILES
- CC(=CCC(C)(C)C(OC)OC)C
- InChI
- InChI=1S/C11H22O2/c1-9(2)7-8-11(3,4)10(12-5)13-6/h7,10H,8H2,1-6H3
- InChIKey
- RDHNTAXPFZIMDN-UHFFFAOYSA-N
Reference data checked 2026-10-27.
CAS 67674-46-8 · reference checked 2026-10-27.
Fragrance allergen reference
Generic regulatory reference only. This is not a supplier allergen declaration, measured composition, allergen-free claim or finished-product labelling assessment.
Raw-material reference based on recorded CAS numbers. A CAS match identifies a reference entry; it does not verify the supplied grade, composition, purity or finished-product compliance. Naturals, bases and mixtures require composition review.
European Union / Northern Ireland
No direct listed-entry CAS match in this jurisdiction’s held reference set. This does not mean the material is allergen-free. Constituents, grouped entries and natural-material composition may require further review.
Finished-cosmetic declaration thresholds: greater than 0.001% leave-on; greater than 0.01% rinse-off. Apply the current target-market rules to the actual complete formulation; no concentration is inferred here.
Commission Regulation (EU) 2023/1545 · Regulation (EU) 2023/1545 with 11 November 2025 corrigendum; checked 2026-10-26.
Held EU transition dates: placing noncompliant products on the market until 2026-07-31; making them available until 2028-07-31. Check applicability and current law for the intended market. 2025 corrigendum.
Great Britain
No direct listed-entry CAS match in this jurisdiction’s held reference set. This does not mean the material is allergen-free. Constituents, grouped entries and natural-material composition may require further review.
Finished-cosmetic declaration thresholds: greater than 0.001% leave-on; greater than 0.01% rinse-off. Apply the current target-market rules to the actual complete formulation; no concentration is inferred here.
Regulation (EC) No 1223/2009, Annex III (Great Britain) · legislation.gov.uk current text checked 2026-10-26.
Current supplier composition or allergen declarations are required to assess naturals, bases, mixtures and actual concentrations. Reference data checked 2026-10-26; bundle 2026-10-27. Supplementary private documents remain separate.
Product specification
| CAS number | 67674-46-8 |
|---|---|
| Odour description (decreasing) | Fresh, Citrus, Grapefruit Peel, Soapy, Woody, Green, Violet |
| Odour strength | Medium (recommend smelling in a 10.00 % solution or less) |
| Perfumery use | Effective from the smallest traces, through to 10%Listed perfumery guidance; this is not an IFRA limit. |
| Substantivity | 2 hour(s) at 100% |
| Solvent | None |
| Physical state | Liquid |
| Synonyms | 6, 6-dimethoxy-2, 5, 5-trimethylhex-2-ene, Amarocit, Amarocite, Dimethyl-4-isoheptenal Dimethyl Acetal, Grapefruit Acetal, 1,1-Dimethoxy-2,2,5-trimethyl-4-hexene |
Safety & handling
Hazard statements:
- H315 Causes skin irritation.
- H412 Harmful to aquatic life with long lasting effects.
Precautionary statements:
- P264 Wash thoroughly after handling.
- P280 Wear protective gloves/protective clothing/eye protection/face protection.
- P273 Avoid release to the environment.
- P302+352 IF ON SKIN: Wash with soap and water.
- P332+313 If skin irritation occurs: Get medical advice/attention.
- P362 Take off contaminated clothing and wash before reuse.
- P501 Dispose of contents/container in accordance with local regulations.
Datasheets & customer documents
Available documents are attached to eligible completed orders in your account.
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Supplementary documents are supplied only where explicitly listed and available. Check documentation information
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Documentation Supply PolicyIFRA formulation guide
Generic reference only — not an IFRA certificate, compliance decision or use recommendation. The Responsible Person and qualified safety assessor must assess the actual finished formula using current applicable IFRA Standards, supplementary documentation where available and the CPSR.
Raw-material reference based on recorded CAS numbers. A CAS match identifies a reference entry; it does not verify the supplied grade, composition, purity or finished-product compliance. Naturals, bases and mixtures require composition review.
Source: 51st Amendment overview, held source checked 2026-10-21. Bundle 2026-10-27. Individual Standards prevail over the overview.
No direct IFRA overview entry matched the recorded CAS in this held dataset. This does not mean unrestricted use, absence of relevant Standards or compliance. Constituent restrictions may still apply.
IFRA source overview · Individual IFRA Standards and supplementary documentation
Supplier certificates and private documents are separate evidence. Their availability does not determine whether this generic guide is shown. This is a dated local reference, not a live regulatory feed.
Creative ideas to explore
Creative directions, not tested formulas.A leafy cologne
With geranium and herbal notesSketch a citrus opening with a green or herbal counterpoint. Compare the leafy version with the citrus alone, noting whether the added direction suggests peel, garden freshness or an herbal character that changes the brief.
Citrus and grain
With a transparent wood directionExplore a spare citrus-and-wood structure, keeping the wood choice simple. Follow both the opening and later impression to see whether the composition keeps a clear outline as the bright citrus character changes through the evaluation.
Petal brightness
With rose and airy floral notesUse a familiar floral accord as the setting for a brighter citrus variation. Compare the flower with and without the citrus material, then decide whether to emphasise a fresh opening or a more continuous floral impression.







RJR (verified owner) –
I love this, it’s brilliant for boosting citrus accords or adding sparkle without too much sweetness.
Perfume Extract continue to impress me with the quality of their products and amazing service
Josh Moore (verified owner) –
suson.teodor (verified owner) –
Fresh, citrusy, and grapefruit-like — brings vibrant, juicy sparkle to top notes.