Decalactone Epsilon (ACS®)

A lactonic profile centred on dairy cream, with peach character and a supporting coconut nuance. Butter-like warmth and gentle sweetness give it a soft, rounded texture, evoking a cultured dairy dessert with fruit. The supplier describes it as less forceful than gamma-undecalactone, with a less fatty impression than related gamma and delta lactones. No stage-by-stage blotter observations or projection measurements are provided, so a specific opening-to-dry-down progression cannot be established.

Provides lactonic body while connecting peach-like fruitiness with coconut character. It softens the contours of fruit and floral accords, particularly where a fuller dairy impression is wanted. The supplier highlights gourmand and white-floral compositions, as well as a creamy central role in sandalwood and tuberose bases.

The supplier gives 0.5–5% of the concentrate as its usual range for adding creamy body to fruity, gourmand and white-floral formulas. Its laboratory notes separately suggest 0.1–2% in the finished fragrance; this is a different formulation basis and should not be treated as a concentrate range. These figures are formulation guidance, not IFRA limits.

No confirmed manufacturer use level for this exact product.

Tenacity

The supplier rates persistence as moderate, on an hours-scale. No numerical duration, evaluation dilution or confirmed blotter test conditions are supplied.

Diffusion, tenacity and note impact are not combined into a single performance score.

Solvents

Clear solutions are reported in ethanol, dipropylene glycol (DPG) and isopropyl myristate (IPM). The page does not provide quantitative solubility limits.

Working dilution

Use a 10% ethanol stock for routine formulation work; the supplier's dilution calculator specifies this solvent and strength. For olfactory assessment, the page recommends 1%, with ethanol among the listed suitable solvents.

Appearance

A viscous liquid ranging from colourless to a faint yellow tint.