Cadalene

Cadalene or cadalin (4-isopropyl-1,6-dimethylnaphthalene) is a polycyclic aromatic hydrocarbon with a chemical formula C15H18 and a cadinane skeleton. It is derived from generic sesquiterpenes, and ubiquitous in essential oils of many higher plants.[1]

Cadalene
Skeletal formula
Ball-and-stick model
Names
IUPAC name
4-Isopropyl-1,6-dimethylnaphthalene
Preferred IUPAC name
1,6-Dimethyl-4-(propan-2-yl)naphthalene
Other names
Cadalin
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.110.415
UNII
  • InChI=1/C15H18/c1-10(2)13-8-6-12(4)14-7-5-11(3)9-15(13)14/h5-10H,1-4H3
    Key: VMOJIHDTVZTGDO-UHFFFAOYAQ
  • c12c(ccc(c1ccc(c2)C)C)C(C)C
Properties
C15H18
Molar mass 198.30342
Appearance Colorless liquid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Cadalene, together with retene, simonellite and ip-iHMN, is a biomarker of higher plants, which makes it useful for paleobotanic analysis of rock sediments.

The ratio of retene to cadalene in sediments can reveal the ratio of the genus Pinaceae in the biosphere.[2]

References
  1. Gomes, Alexandre de O.; Azevedo, Débora de A. (2003). "Aliphatic and aromatic hydrocarbons in tropical recent sediments of Campos dos Goytacazes, RJ, Brazil". Journal of the Brazilian Chemical Society. 14 (3): 358. doi:10.1590/S0103-50532003000300004.
  2. Hautevelle, Y.; Michels, R.; Malartre, F.; Trouiller, A. (2005). "Vascular plant biomarkers as ancient vegetation proxies and their stratigraphic use for tracing paleoclimatic changes during Jurassic in Western Europe" (abstract page). Geophysical Research Abstracts. 7: 10201.


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