Constituent · Sesquiterpene hydrocarbon
α-calacorene
α-calacorene 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 15 oils (81 samples), concentrating most in Cedarwood, Anise, Yarrow.
Essential oils richest in α-calacorene
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 |
|---|---|---|---|---|
| Cedarwood | 1.68% | 1.02%–2.34% | 3% | 2 |
| Anise | 1.53% | 0.79%–2.26% | 3% | 2 |
| Yarrow | 1.11% | 0.73%–1.87% | 2.56% | 13 |
| Helichrysum | 0.71% | 0.63%–0.76% | 0.81% | 4 |
| German chamomile | 0.6% | 0.55%–0.65% | 0.7% | 2 |
| Sage | 0.28% | 0.24%–0.31% | 0.34% | 2 |
| Geranium | 0.25% | 0.16%–0.29% | 0.4% | 14 |
| Rosemary | 0.14% | 0.06%–0.34% | 0.4% | 13 |
| Mountain savory | 0.12% | 0.11%–0.17% | 0.26% | 20 |
| Juniper | 0.1% | 0.1%–0.1% | 0.1% | 1 |
| Pine | 0.1% | 0.1%–0.1% | 0.1% | 1 |
| Citronella | 0.08% | 0.07%–0.1% | 0.11% | 2 |
| Clove | 0.08% | 0.06%–0.09% | 0.11% | 2 |
| Laurel | 0.05% | 0.05%–0.05% | 0.05% | 1 |
| Cinnamon bark | 0.03% | 0.02%–0.03% | 0.03% | 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 →