Constituent · Oxygenated sesquiterpene
α-muurolol
α-muurolol is an oxygenated sesquiterpene — a heavy, tenacious woody or earthy compound. Across our dataset it was measured in 14 oils (35 samples), concentrating most in Ylang ylang, Cedarwood, Helichrysum.
14 oils 35 samples Oxygenated sesquiterpene
Essential oils richest in α-muurolol
Measured relative composition (GC peak-area %) pooled across published GC-MS samples — median, typical range (middle 50%) and the maximum seen.
| Oil | Median | Typical range | Max | Samples |
|---|---|---|---|---|
| Ylang ylang | 5.45% | 2.78%–6.59% | 7.73% | 3 |
| Cedarwood | 4.45% | 1.9%–5.2% | 13.5% | 6 |
| Helichrysum | 2.86% | 2.23%–3.18% | 3.4% | 8 |
| Oregano | 0.45% | 0.43%–0.48% | 0.5% | 3 |
| Ravintsara | 0.4% | 0.4%–0.4% | 0.4% | 1 |
| Black pepper | 0.3% | 0.3%–0.3% | 0.3% | 1 |
| Geranium | 0.3% | 0.3%–0.3% | 0.3% | 1 |
| Juniper | 0.2% | 0.2%–0.2% | 0.2% | 2 |
| Citronella | 0.18% | 0.13%–0.24% | 0.29% | 2 |
| Thyme | 0.15% | 0.13%–0.18% | 0.2% | 2 |
| Fennel | 0.1% | 0.1%–0.1% | 0.1% | 1 |
| Pine | 0.1% | 0.1%–0.1% | 0.1% | 1 |
| Lavender | 0.04% | 0.03%–0.89% | 1.73% | 3 |
| Rosemary | 0.04% | 0.04%–0.04% | 0.04% | 1 |
Oils in our library are linked above — open any profile for its full composition, safety panel and the research behind it.
Related constituents
Other oxygenated sesquiterpene compounds across the oils.
Figures are GC peak-area percentages pooled across published GC-MS samples, not concentrations, and describe chemistry — not health effects. How this is built →