Compounds · Monoterpenes · Terpenoid pathway
α-Phellandrene
Faint mint, wood, with a slight citrus note. Greener than limonene and less sweet.
- CAS
- 99-83-2
- Formula
- C10H16
- Molar mass
- 136.23
- Odour threshold
- —
- Boiling point
- ≈ 175 °C at atmospheric pressure
Volatility
150 °C290 °C
Where it comes from
Biosynthetic pathway: Terpenoid pathway — plants build them from identical five-carbon blocks.
Why it sits where it does
Like α-terpinene, it has two double bonds in the ring, so it too oxidises easily. The two compounds usually appear together on an analysis.
Where else you meet it
Dill, eucalyptus, black pepper, celery. At high concentration it can irritate the skin.