Constituent · Sesquiterpene hydrocarbon
α-ylangene
α-ylangene is a sesquiterpene hydrocarbon — a heavier, woody or spicy base-note compound that lingers longer than the light terpenes. Across our dataset it was measured in 13 oils (41 samples), concentrating most in Helichrysum, Citronella, Vitex.
Essential oils richest in α-ylangene
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 |
|---|---|---|---|---|
| Helichrysum | 4% | 3.53%–9.61% | 9.84% | 5 |
| Citronella | 1.26% | 0.73%–1.78% | 2.31% | 2 |
| Vitex | 0.97% | 0.97%–0.97% | 0.97% | 1 |
| Geranium | 0.55% | 0.55%–0.55% | 0.55% | 1 |
| Melissa | 0.5% | 0.5%–0.5% | 0.5% | 1 |
| Sage | 0.35% | 0.06%–0.51% | 1.9% | 5 |
| Yarrow | 0.14% | 0.14%–0.14% | 0.14% | 1 |
| Manuka | 0.12% | 0.12%–0.12% | 0.12% | 1 |
| Rosemary | 0.12% | 0.11%–0.23% | 0.4% | 15 |
| Cypress | 0.1% | 0.1%–0.1% | 0.1% | 1 |
| Mountain savory | 0.1% | 0.1%–0.1% | 0.1% | 1 |
| Ylang ylang | 0.1% | 0.1%–0.11% | 0.16% | 5 |
| Oregano | 0.08% | 0.06%–0.09% | 0.1% | 2 |
Oils in our library are linked above — open any profile for its full composition, safety panel and the research behind it.
Related constituents
Other sesquiterpene hydrocarbon 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 →