Terpinolene

Identity

Property Value
Preferred name Terpinolene
IUPAC name 1-methyl-4-propan-2-ylidenecyclohexene
CAS number 586-62-9
PubChem CID 11463 [^4]
Chemical family Monocyclic Monoterpene
Molecular formula C10H16
Molecular mass 136.23 g/mol
Stereochemistry No chiral centers

Aroma and sensory character

Complex scent carrying herbal, citrus, pine, and floral undertones.

Occurrence outside cannabis

  • Apples (Malus domestica)
  • Cumin (Cuminum cyminum)
  • Tea tree (Melaleuca alternifolia)
  • Sage (Salvia officinalis)

Physical properties

Property Value
Standard boiling point 185 °C
Reference pressure 101.325 kPa
Data source NIST Chemistry WebBook (SRD 69); mean of 7 determinations [^1]

Thermal-extraction context

Reported biological activity

Human evidence

Isolated human trials are currently lacking.

Animal or laboratory evidence

In cultured primary rat neurons and N2a neuroblastoma cells, terpinolene increased total antioxidant capacity at 10–50 mg/L and reduced cell proliferation at 50–200 mg/L — concentrations well above plausible cannabis inhalation exposure 1. In mice, inhaled terpinolene reduced locomotor activity in an open-field test, an effect attributed to nasal absorption of the compound 2.

Traditional or anecdotal claims

Frequently noted by consumers in connection with distinct sensory profiles.

Cannabis laboratory results

Highly variable: up to 30.5 mg/g (≈3% dry weight) in one of nine Italian hemp cultivars, with a 0.18–30.5 mg/g range across the set (GC-MS of hydrodistilled essential oil); dominant only in some chemotypes 3. Check Lab Results for records.

Sources

  1. Aydin E, Türkez H, Taşdemir Ş. Anticancer and antioxidant properties of terpinolene in rat brain cells. Arh Hig Rada Toksikol. 2013;64(3):415–424. doi:10.2478/10004-1254-64-2013-2365. PMID 24084350. ↩

  2. Ito K, Ito M. The sedative effect of inhaled terpinolene in mice and its structure-activity relationships. J Nat Med. 2013;67(4):833–837. PMID 23339024. ↩

  3. Mazzara E, et al. A Comprehensive Phytochemical Analysis of Terpenes, Polyphenols and Cannabinoids, and Micromorphological Characterization of 9 Commercial Varieties of Cannabis sativa L. Plants. 2022;11(7):891. doi:10.3390/plants11070891. ↩