| 单词 |
sterane |
| 释义 |
sterane Min. and Chem.|ˈstɪəreɪn, ˈstɛreɪn|
[f. steroid + -ane.]
Any of a class of saturated hydrocarbons with a steroid structure which are found in crude oils and derived from the sterols of ancient organisms; orig., † the compound whose molecule consists of the saturated nucleus only.
1951Jrnl. Chem. Soc. 3527 The substance (II) shall be named gonane (preferred) or sterane (alternative). 1969Geochim. & Cosmochim. Acta XXXIII. 1307 The C27, C28 and C29 steranes are present in the bitumen from the Green River oil shale and..they were derived from cholesterol, ergosterol, stigmasterol or related sterols. 1973Nature 27 Apr. 603/1 These steranes and terpanes represent the complete reduction of naturally occurring steroids or terpenoids to relatively stable fossil molecules which preserve intact the complete molecular skeleton and stereochemistry of their precursors. Steranes..provided convincing proof for the biological origins of petroleums. |
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