Isooctadecan-1-ol (CAS 27458-93-1) — Citrus N/A Note Fragrance Ingredient
Isooctadecan-1-ol
CAS 27458-93-1
What Is Isooctadecan-1-ol?
Isooctadecan-1-ol is a synthetic alcohol used in cosmetics and industrial applications. It serves as an emollient and viscosity regulator in lotions, creams, and hair products. This ingredient helps maintain product consistency and provides a smooth skin feel. While not common in fine fragrances, it plays a functional role in product formulations.
Safety Profile
GENERALLY SAFEWhat Does Isooctadecan-1-ol Smell Like?
Isooctadecan-1-ol has a faint, waxy odor with minimal olfactory impact. It lacks distinct top notes and does not evolve significantly over time. The scent is neutral, making it suitable for functional use rather than perfumery. Its primary role is in product formulation rather than fragrance contribution.
Chemistry, Properties & Perfumer Guide
The Chemistry
Isooctadecan-1-ol is a branched-chain fatty alcohol synthesized from petrochemical sources. Its structure features a long hydrocarbon chain with a hydroxyl group, contributing to its emollient properties. The synthetic route typically involves hydroformylation or oxidation of alkenes followed by reduction. Its branched structure enhances stability and solubility in cosmetic formulations.
Physical & Chemical Properties
| Boiling Point | N/A |
|---|---|
| Melting Point | N/A |
| Flash Point | N/A |
| Density | N/A |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Cosmetics | 1-5% | Up to 10% | Emollient and viscosity regulator |
| Industrial | 5-15% | Up to 20% | Functional additive |
Classic Accords
Tip: Use as a neutral base for functional formulations rather than fragrance compositions.
Alternatives & Comparisons
A mixture of fatty alcohols offering similar emollient properties with better stability in formulations.
A straight-chain fatty alcohol with comparable viscosity-regulating effects but different solubility profile.
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
No IFRA restrictions apply.
RIFM Assessment
Not assessed by RIFM due to its non-fragrance use.
Sustainability
Isooctadecan-1-ol is derived from petrochemical sources, raising sustainability concerns. Efforts to develop bio-based alternatives are ongoing. Its synthetic origin ensures consistent quality but lacks the renewable appeal of natural ingredients.
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Perfumer’s Notes
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