单词 | abietene |
释义 | abietenen. Chemistry. 1. A volatile, odoriferous liquid hydrocarbon mixture obtained by distillation of the resin of the digger pine of California, Pinus sabiniana, and formerly used as a solvent and in patent medicines; = abietine n. 2. Now rare.The mixture called abietene consists mainly of n-heptane, CH3(CH2)5CH3. ΚΠ 1872 Pharm. Jrnl. & Trans. 2 789/2 Abietene, a new hydrocarbon...It occurs as an article of commerce, and has acquired, during the last eight or ten years, a considerable reputation under the names of abietene, erasine, aurantine, theoline, etc., for the removal of grease. 1875 R. Hunt & F. W. Rudler Ure's Dict. Arts (ed. 7) I. 2 The vapour of abietene is a powerful anæsthetic when inhaled. 1931 M. Grieve Mod. Herbal II. 635/2 P. sabiniana. Nut or Digger Pine. Turpentine, the oil being called abietene. 2. Any of a group of unsaturated terpenoid hydrocarbons structurally related to abietic acid.The abietenes have structures based on a tricyclic skeleton with the formula C19H30. ΚΠ 1904 T. H. Easterfield & G. Bagley in Jrnl. Chem. Soc. 85 1240 The name abietene is adopted for the hydrocarbon from abietic acid, since in recent years the term colophene has generally been applied to the condensation product from turpentine. 1931 Industr. & Engin. Chem. 23 1462 Preparation, properties, and uses of new wetting agents—the sulfonated abietenes—are described. 1995 Phytochem. 38 451/1 In addition, five abietenes, the known acid 9 and the new analogues 10–12 and 14, as well as kaurenoic acid..were obtained. This entry has been updated (OED Third Edition, September 2009; most recently modified version published online December 2021). < n.1872 |
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