phenanthrenen.
/fᵻˈnanθriːn/, /fɛˈnanθriːn/, U.S. /fəˈnænˌθrin/, /fɛˈnænˌθrin/ Chemistry.
A white crystalline hydrocarbon, C14H10, which has a tricyclic molecule consisting of two benzene rings joined by a single bond and by an ethylene group —CH=CH—, and occurs in coal tar.
ΚΠ
1873 Jrnl. Chem. Soc. 26 633 Phenanthrene is also produced by the same process from dibenzyl.
1930 H. F. Smyth & W. L. Obold Industr. Microbiol. xxx. 244 Three types of organisms were able to utilize naphthalene as a source of carbon and other varieties utilized phenanthrene.
1970 New Scientist 19 Feb. 347/2 The gaseous waste products..contain..a number of carcinogenic compounds such as phenanthrene and others.
1994 D. Tulchinsky & A. B. Little Maternal–Fetal Endocrinol. (ed. 2) ix. 152/2 All corticosteroids are derived from cholesterol and have a similar cyclic nucleus resembling phenanthrene (rings A, B, and C) to which a cyclopentane is attached (ring D).
This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022).
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