Butter starter distillate (CAS 91745-88-9) — Sweet Heart Note Fragrance Ingredient
Butter starter distillate
CAS 91745-88-9
What Is Butter starter distillate?
Butter starter distillate is a natural aromatic compound derived from dairy fermentation processes. It’s most commonly encountered in gourmand perfumes and food flavorings, where it imparts a rich, buttery character. This ingredient matters because it bridges culinary and perfumery arts, offering a unique lactonic creaminess that can’t be replicated by other materials.
Safety Profile
GENERALLY SAFEWhat Does Butter starter distillate Smell Like?
Butter starter distillate opens with an intense, mouthwatering aroma of freshly churned butter and cultured cream. The heart reveals complex layers of warm dairy – think melted butter on toast with subtle cheesy undertones. As it dries down, it transforms into a soft, milky lactone reminiscent of warm milk skin with a faint caramelized sugar nuance. The overall effect is surprisingly clean for a dairy note, avoiding any cloying or rancid qualities.
In Famous Fragrances
Fragrance associations may not reflect actual formulations.
Used as a gourmand bridge between vanilla and spice, adding a creamy lactonic texture that softens the composition.
Forms the photorealistic buttered toast accord, combining with wheat and sandalwood for a breakfast fantasy.
Chemistry, Properties & Perfumer Guide
The Chemistry
Butter starter distillate is a complex mixture of fatty acids, diacetyl, and lactones produced during dairy fermentation. The key aroma compounds include 2,3-butanedione (diacetyl) which provides the characteristic buttery note, along with delta-decalactone and gamma-dodecalactone contributing creamy aspects. These compounds form naturally when bacterial cultures like Streptococcus lactis ferment milk sugars.
Physical & Chemical Properties
| Appearance | Clear to pale yellow liquid |
|---|---|
| Odor Strength | Medium to strong |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Fine Fragrance | 0.5-2% | Up to 5% | Used sparingly for gourmand effects |
| Candles | 1-3% | Up to 8% | Creates bakery realism |
Classic Accords
Tip: Use trace amounts with white florals to create a creamy, skin-like effect without obvious foodiness.
Alternatives & Comparisons
The pure synthetic form of the key butter molecule, more intense but lacks complexity of natural distillate.
Provides similar creamy aspects without the strong dairy association, better for subtle applications.
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
No restrictions under current IFRA standards.
RIFM Assessment
Considered safe at current usage levels in fragrances by RIFM.
Sustainability
As a byproduct of dairy fermentation, butter starter distillate represents efficient use of food production waste. However, its dairy origin makes it unsuitable for vegan formulations. Some perfumers opt for synthetic lactone blends to reduce reliance on animal-derived materials while achieving similar effects.
Explore Butter starter distillate
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References
- Burdock, G.A. (2010). Fenaroli’s Handbook of Flavor Ingredients. CRC Press.
Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Apr 2026.
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