Decyl Butyrate (CAS 5454-09-1) — Mid Note Fragrance Ingredient
Decyl Butyrate
CAS 5454-09-1
What Is Decyl Butyrate?
Decyl Butyrate (CAS 5454-09-1) is an aroma chemical used as a fragrance and flavour ingredient. Its odour is described as sweet, fruity and waxy, placing it within the fruity family as a mid note with low volatility. With a molecular weight of 228.4 (formula C14H28O2), it is handled by perfumers as a building block for compositions where a sweet character is desired. The data below is compiled from public chemical and regulatory sources.
Safety Profile
GENERALLY SAFE
What Does Decyl Butyrate Smell Like?
The odour profile of Decyl Butyrate is reported as sweet, fruity, waxy, slightly rosy, apricot-like, tropical, soft, fresh. The dominant facet is its sweet character, with the remaining notes adding nuance and complexity. As a mid note it contributes to the heart of a fragrance. Perceived intensity and exact character depend on concentration, the carrier and the surrounding accord.
Scent Profile
Profile derived from public odour-descriptor data; relative, not absolute.
Chemistry & Properties
The Chemistry
Decyl Butyrate has the molecular formula C14H28O2 and a molecular weight of 228.4 g/mol. Its canonical SMILES representation is CCCCCCCCCCOC(=O)CCC. Its reported log P (XLogP) of 4.47 indicates a lipophilic, oil-soluble molecule, which informs how it partitions in a formula. Physical constants below are drawn from PubChem and EPA CompTox public datasets.
Physical & Chemical Properties
| Molecular Weight | 228.4 g/mol |
|---|---|
| Boiling Point | 273.0 °C |
| Melting Point | -23.75 °C |
| Flash Point | 117.5 °C |
| Density | 0.8617 g/cm³ |
| Vapor Pressure | 0.002906 mmHg |
| Water Solubility | 6.152e-05 g/L |
| XLogP | 4.47 |
Perfumer Guide
Alternatives & Comparisons
Ingredients occupying a similar odour space — useful as substitutes or companions when Decyl Butyrate is unavailable or restricted.
Shares sweet, fresh, fruity character — a candidate substitute or companion in the same odour space.
Shares fruity, sweet, waxy character — a candidate substitute or companion in the same odour space.
Shares fruity, sweet, tobacco character — a candidate substitute or companion in the same odour space.
Safety & Regulatory
⚠ Regulatory Disclaimer
General reference only. IFRA, REACH and EU Cosmetics Regulation standards update periodically. Consult the current IFRA Standards Library before formulating. Not legal or regulatory advice.
IFRA Status
No IFRA restriction recorded in the data set. This is not a guarantee of unrestricted status — always confirm against the current IFRA Standards Library.
Odour detection threshold (air): 0.0067 ppb — a literature-curated value indicating its potency in the vapour phase.
Open Decyl Butyrate in Fragrance Studio (Pro) for the calibrated vapour-pressure curve, the modelled odour-threshold estimate, and the substitute-matching engine across 2,900+ aromachemicals.
References & Sources
- PubChem Compound Summary (NIH) — search by InChIKey
- EPA CompTox Chemicals Dashboard — physicochemical & fate data
- IFRA Standards Library (49th / 51st Amendment)
Data: PubChem (NIH), EPA CompTox, IFRA. Last reviewed: Jun 2026.
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