Squalene in Petroleum Asphaltenes

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Science  18 Sep 1981:
Vol. 213, Issue 4514, pp. 1381-1383
DOI: 10.1126/science.213.4514.1381


Squalene, 2,6,10,15,19,23-hexamethyl-2,6,10,14,18,22-tetracosahexaene, a new biological marker, has been detected in various petroleum asphaltenes and their pyrolysis products. Since squalene is the most common triterpenoid in nature and the biological precursor of the important tetra- and pentacyclic triterpane markers, its detection in asphaltene suggests new ways for marker correlations.