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β-Citronellyl acetate

3,7-Dimethyl-6-octen-1-yl ethanoate

Citronellol acetate · Acetic acid citronellyl ester

Aliphatic monoterpenoid alkene ester · C₁₂H₂₂O₂

Chemical structure of β-Citronellyl acetate
2D structure PubChem / NCI CIR

Chemical info

CAS number CAS
150-84-5
Molecular formula
C₁₂H₂₂O₂
Molecular weight
198.30 g/mol
Aroma
Soft rose, fresh citrus, mellow sweet.

Safety

Low concern · Safe at standard use

β-Citronellyl acetate is the ester of citronellol. The compound presents low toxicity risk.

Skin. Undiluted on rabbit skin under 24-hour occlusion was irritating. A 4 percent patch test on 25 volunteers was mildly irritant and non-sensitizing.

Oral and dermal. Acute oral LD50 in rats is 6.8 g/kg; rabbit dermal LD50 exceeds 2 g/kg.

Carcinogenicity. In a two-year study with a geranyl acetate/citronellyl acetate 71/29 mixture in rats and mice five times per week at 500–2,000 mg/kg, the compound was not classified as carcinogenic. A marginal increase in skin papillomas and renal tubular adenomas appeared in male rats at high doses but was not statistically significant.


Usage guidelines

Concern level
Low
Oils with high content
Lemon-scented gum tr–9.7 percent · Chaste tree leaf 0.3–7.8 percent · Citronella 0.9–7.3 percent

Found in essential oils

Principal sources
Lemon-scented gumtr – 9.7 %
Chaste tree0.2 – 7.8 %
Citronella0.9 – 7.3 %
Combava leaf0.9 – 5.1 %
Angelica root (Himalayan)2.2 – 3.4 %
Rose (Damask)0.2 – 2.8 %
Combava fruit0.5 – 1.5 %

Notes

β-Citronellyl acetate contributes soft rose and fresh citrus notes to geranium and rose oils. The compound serves as a natural fixative for top notes.