Chemical Name: 4-Decanolide (γ-Undecalactone)
Common Names: Gamma Undecalactone, γ-Undecalactone, Peach Lactone
Molecular Formula: C₁₀H₁₈O₂
Molecular Weight: 170.25 g/mol
CAS Number: 104-67-6
Appearance: Colorless to pale yellow liquid
Odor: Fruity, sweet, creamy, peach-like, coconut nuances
Boiling Point: ~270°C
Flash Point: ~116°C
Solubility: Insoluble in water; soluble in alcohol and oils
Functional Group: Lactone (cyclic ester)
Perfumery Profile
Scent Profile:
- Juicy, creamy, and sweet fruity aroma, strongly reminiscent of ripe peaches
- Soft, creamy coconut and subtle dairy notes
- Adds a natural fruity, gourmand quality with a warm and velvety feel
Use in Perfumery:
- Widely used to impart peach, apricot, and other stone fruit nuances in perfumes
- Enhances fruity, gourmand, floral, and sweet compositions
- Common in fruity gourmand, floral fruity, and sweet fragrance families
- Adds a roundness and smoothness to fruity accords
Fragrance Families:
- Fruity
- Gourmand
- Floral
- Sweet
Natural Source:
- Occurs naturally in some fruits like peaches, apricots, and blackberries
- Primarily synthesized for consistent use in perfumery and flavoring
Notable Uses:
- Found in perfumes and flavorings to evoke ripe peach and creamy fruity notes
- Used in body care products, fine fragrances, and food flavor formulations