Linalool oxide · Constituent

Chemical info / 化学情報

CAS number CAS

1365-19-1

Molecular formula

C₁₀H₁₈O₂

Molecular weight

170.25 g/mol

Aroma

Lightly floral, slightly earthy, recalling tea and osmanthus. A subtle accessory note in floral oils.

Safety / 安全性

Low concern · Trace constituent

Linalool oxide is the oxidation product of linalool, present at low levels in some floral oils. Data indicate no irritation and no sensitization.

Skin. Undiluted linalool oxide was moderately to severely irritating to rabbit skin under 24-hour occlusion. An 8 percent patch test on 28 volunteers caused no irritation and no sensitization.

Acute toxicity. Acute oral LD50 in rats is 1.15 g/kg. Acute dermal LD50 in rabbits is 2.5 g/kg. Slight toxicity level.

Usage guidelines / 使用基準

Concern level

Low

Toxicity level

Slight

Found in essential oils / 含有精油

Principal sources
Osmanthus	0.6 – 7.0 %
Mint (bergamot)	1.2 – 1.7 %
Rosewood	1.3 %
Linaloe wood	1.0 – 2.0 %

Notes / 注記

Linalool oxide exists in two main isomeric forms, (E)- and (Z)-, both occurring in osmanthus absolute at a few percent.

The compound forms naturally when linalool oxidizes. Commercial linalool material always contains a small fraction as impurity.