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| IUPAC name 6β,11-Cyclo-1β,4α,5β-guaian-10α-ol | |
| Systematic IUPAC name (1aR,4R,4aS,7R,7aS,7bS)-1,1,4,7-Tetramethyldecahydro-1H-cyclopropaazulen-4-ol | |
| Identifiers | |
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| Properties | |
| Chemical formula | C15H26O |
| Molar mass | 222.372 g·mol |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references | |
Ledol is a poisonous sesquiterpene that can cause cramps, paralysis, and delirium. Caucasian peasants used Rhododendron plants for these effects in shamanistic rituals.
Sources
Ledol is found in labrador tea, an herbal tea (not a true tea) made from three closely related species:
- Rhododendron tomentosum – Northern Labrador tea, previously Ledum palustre
- Rhododendron groenlandicum – Bog Labrador tea, previously Ledum groenlandicum or Ledum latifolium
- Rhododendron columbianum – Western Labrador tea, or trapper's tea, previously Ledum glandulosum
Ledol is also found in the essential oil of priprioca at a concentration of around 4%.
Ledol is also found to varying concentrations in the following plants:
- Cistus ladaniferus
- Corymbia maculata
- Eucalyptus albens
- Eucalyptus astringens
- Eucalyptus blakelyi
- Eucalyptus bosistoana
- Eucalyptus botryoides
- Eucalyptus camaldulensis
- Eucalyptus citriodora
- Eucalyptus cladocalyx
- Eucalyptus dealbata
- Eucalyptus diversicolor
- Eucalyptus globulus
- Eucalyptus maidenii
- Eucalyptus melliodora
- Eucalyptus moluccana
- Eucalyptus nova-anglica
- Eucalyptus occidentalis
- Eucalyptus oviformis
- Eucalyptus paniculata
- Eucalyptus polyanthemos
- Eucalyptus punctata
- Eucalyptus saligna
- Eucalyptus siderophloia
- Eucalyptus sideroxylon
- Eucalyptus tereticornis
- Humulus lupulus
- Hyssopus officinalis
- Mentha × piperita
- Panax quinquefolius
- Peumus boldus
- Pimenta dioica
- Piper cubeba
- Salvia officinalis
- Satureja obovata
- Syzygium aromaticum
- Teucrium arduini
- Teucrium gnaphalodes
- Teucrium polium
- Valeriana officinalis
- Vitex agnus-castus
References
- Andrews, Steve; Rindsberg, Katrina (April 2001). Herbs of the Northern Shaman: A Guide to Mind-Altering Plants of the Northern Hemisphere. Loompanics Unlimited. ISBN 1-55950-211-8. OCLC 780276732.
- Dampc, Anna; Luczkiewicz, Maria (2015). "Labrador tea – the aromatic beverage and spice: A review of origin, processing and safety". Journal of the Science of Food and Agriculture. 95 (8): 1577–1583. Bibcode:2015JSFA...95.1577D. doi:10.1002/jsfa.6889. PMID 25156477.
- Azambuja, Wagner. "Priprioca Essential Oil - Óleos Essenciais O Guia do Brasil". Óleos Essenciais. Brazil. Archived from the original on 13 September 2017. Retrieved 12 September 2017.
- Duke, James A. (1992). "Handbook of phytochemical constituents of GRAS herbs and other economic plants". Department of Agriculture, Agricultural Research Service. 1992-2016. Dr. Duke's Phytochemical and Ethnobotanical Databases. Boca Raton, FL: CRC Press. doi:10.15482/USDA.ADC/1239279. Archived from the original on 2021-09-30. Retrieved 2017-09-13.