四膜虫醇

Tetrahymanol
	IUPAC名; (3S,4aR,6aR,6aR,6bR,8aS,12aS,14aR,14bR)-4,4,6a,6b,9,9,12a,14b-Octamethyl-1,2,3,4a,5,6,6a,7,8,8a,10,11,12,13,14,14a-hexadecahydropicen-3-ol
	系统名; (1R,2R,5R,7S,10R,11R,14R,15S,20S)-1,2,6,6,10,15,19,19-octamethylpentacyclo[12.8.0.02,11.05,10.015,20]docosan-7-ol; (1R,2R,5R,7S,10R,11R,14R,15S,20S)-1,2,6,6,10,15,19,19-八甲基五环[12.8.0.02,11.05,10.015,20]-7-二十二醇
别名	Gammaceran-3β-ol
识别
CAS号	2130-17-8
PubChem	168951
ChemSpider	147779
SMILES	C[C@]12CCCC([C@@H]1CC[C@@]3([C@@H]2CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)O)C)C)C)(C)C;
InChI	1S/C30H52O/c1-25(2)15-9-16-27(5)20(25)12-18-29(7)22(27)10-11-23-28(6)17-14-24(31)26(3,4)21(28)13-19-30(23,29)8/h20-24,31H,9-19H2,1-8H3/t20-,21-,22+,23+,24-,27-,28-,29+,30+/m0/s1;
InChIKey	BFNSRKHIVITRJP-VJBYBJRLSA-N
ChEBI	9493
KEGG	C06083
性质
化学式	C30H52O
摩尔质量	428.73 g·mol−1
	若非注明，所有数据均出自一般条件（25 ℃，100 kPa）下。

四膜虫醇（英語：，或称作伽马蜡烷-3β-醇，Gammaceran-3β-ol）是一种五环三萜醇，最早发现于海洋纤毛虫四膜蟲（Tetrahymena pyriformis）的细胞膜中[1]，之后在其它纤毛虫、真菌、蕨类、细菌中都有发现[2]。经过数百万年的成岩作用，海洋沉积物中的四膜虫醇会转化为对应的饱和烃类伽马蜡烷[2]，可用于分析古代的海洋环境[3]。

胆固醇（A）、四膜虫醇（B）、藿烯醇B（C）的化学结构

另见

四膜虫醇合酶

参考文献

Mallory FB, Gordon JT, Conner RL. . Journal of the American Chemical Society. June 1963, 85 (9): 1362–1363. doi:10.1021/ja00892a042.
Ten Haven HL, Rohmer M, Rullkötter J, Bisseret P. . Geochimica et Cosmochimica Acta. November 1989, 53 (11): 3073–3079. Bibcode:1989GeCoA..53.3073T. doi:10.1016/0016-7037(89)90186-5.
Sinninghe Damste JS, Kenig F, Koopmans MP, Koster J, Schouten S, Hayes JM, de Leeuw JW. . Geochimica et Cosmochimica Acta. May 1995, 59 (9): 1895–900. Bibcode:1995GeCoA..59.1895S. PMID 11540109. doi:10.1016/0016-7037(95)00073-9. hdl:1874/4297.

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[1] Mallory FB, Gordon JT, Conner RL. . Journal of the American Chemical Society. June 1963, 85 (9): 1362–1363. doi:10.1021/ja00892a042.

[:0-2] Ten Haven HL, Rohmer M, Rullkötter J, Bisseret P. . Geochimica et Cosmochimica Acta. November 1989, 53 (11): 3073–3079. Bibcode:1989GeCoA..53.3073T. doi:10.1016/0016-7037(89)90186-5.

[:2-3] Sinninghe Damste JS, Kenig F, Koopmans MP, Koster J, Schouten S, Hayes JM, de Leeuw JW. . Geochimica et Cosmochimica Acta. May 1995, 59 (9): 1895–900. Bibcode:1995GeCoA..59.1895S. PMID 11540109. doi:10.1016/0016-7037(95)00073-9. hdl:1874/4297.