Octanal, 6-methoxy-2,6-dimethyl- (CAS 929253-05-4) — Citrus Top to middle Note Fragrance Ingredient
Octanal, 6-methoxy-2,6-dimethyl-
CAS 929253-05-4
What Is Octanal, 6-methoxy-2,6-dimethyl-?
Octanal, 6-methoxy-2,6-dimethyl- is a synthetic fragrance ingredient used to add fresh, citrusy notes to perfumes and scented products. You’ll encounter it in air fresheners, cleaning products, and some citrus-forward perfumes. This molecule matters because it provides a long-lasting, clean citrus character that doesn’t fade quickly like natural citrus oils. Its stability makes it valuable for formulators seeking persistent top notes.
Safety Profile
GENERALLY SAFEWhat Does Octanal, 6-methoxy-2,6-dimethyl- Smell Like?
Octanal, 6-methoxy-2,6-dimethyl- opens with a bright, aldehydic citrus burst reminiscent of freshly peeled mandarin oranges, but with cleaner, more refined edges. As it evolves, a subtle floralcy emerges – imagine orange blossoms kissed by morning dew. The dry-down reveals a soft woody-musky base that lingers surprisingly long for a citrus note, like the memory of citrus zest on warm cedarwood. Unlike natural citrus oils that fade quickly, this synthetic maintains its character for hours, transitioning smoothly from sparkling freshness to a sophisticated skin scent.
In Famous Fragrances
Fragrance associations may not reflect actual formulations.
Used as a synthetic citrus enhancer to boost the longevity of the lemon note, creating that iconic ‘never-fades’ citrus character that defines this bestseller.
Provides the crisp, clean citrus top note that blends seamlessly with the green tea heart, contributing to the unisex appeal.
Chemistry, Properties & Perfumer Guide
The Chemistry
Octanal, 6-methoxy-2,6-dimethyl- is a synthetic aldehyde derivative with a branched carbon chain. The methoxy group at position 6 enhances stability and modifies the odor profile compared to straight-chain aldehydes. While not found in nature, it shares structural similarities with citrus-derived aldehydes. Synthesis typically involves Grignard reactions or oxidation of corresponding alcohols. The branched structure contributes to its resistance to oxidation and prolonged olfactory performance.
Physical & Chemical Properties
| Appearance | Colorless to pale yellow liquid |
|---|---|
| Odor Threshold | Low (high potency) |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Fine Fragrance | 0.5-2% | Up to 5% | Citrus note extender |
| Functional Fragrance | 0.1-0.5% | Up to 1% | Clean, fresh accent |
Classic Accords
Tip: Use with citrus oils to extend their longevity without altering their character.
Alternatives & Comparisons
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
Not restricted under current IFRA standards.
RIFM Assessment
Not currently assessed by RIFM.
Sustainability
As a synthetic material, Octanal, 6-methoxy-2,6-dimethyl- has minimal environmental impact from sourcing. Production can be optimized for atom economy and waste reduction. Being synthetic eliminates concerns about agricultural land use or seasonal variability associated with natural citrus oils.
Explore Octanal, 6-methoxy-2,6-dimethyl-
Browse essential oils and aroma compounds.
Browse on iHerb →Affiliate disclosure: we may earn a small commission at no extra cost to you.
References
- Bauer, K. et al. (2001). Common Fragrance and Flavor Materials. Wiley-VCH.
Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Apr 2026.
Report a data error
