地衣甾醇

地衣甾醇（英语：Lichesterol，又叫麦角甾-5,8,22E-三烯-3β-醇，ergost-5,8,22E-trien-3β-ol）是一种主要由真菌和地衣合成的类固醇化合物^[3]。

地衣甾醇
IUPAC名 (3β,22E)-Ergosta-5,8,22-trien-3-ol (2S,5S,11R,14R,15R)-14-[(2R,3E,5R)-5,6-dimethylhept-3-en-2-yl]-2,15-dimethyltetracyclo[8.7.0.02,7.011,15]heptadeca-1(10),7-dien-5-ol
识别
CAS号	50657-31-3  Y
PubChem	5281329
ChemSpider	4444706
SMILES	C[C@H](/C=C/[C@H](C)C(C)C)[C@H]1CC[C@@H]2[C@@]1(CCC3=C2CC=C4[C@@]3(CC[C@@H](C4)O)C)C
InChI	1/C28H44O/c1-18(2)19(3)7-8-20(4)24-11-12-25-23-10-9-21-17-22(29)13-15-27(21,5)26(23)14-16-28(24,25)6/h7-9,18-20,22,24-25,29H,10-17H2,1-6H3/b8-7+/t19-,20+,22-,24+,25-,27-,28+/m0/s1
InChIKey	VILFZDAFELACSG-CMNOFMQQBH
KEGG	C08823
性质
化学式	C28H44O
摩尔质量	396.648 g·mol⁻¹
熔点	124—125 °C（397—398 K）[1]
log P	9.166 ± 0.373[2]
若非注明，所有数据均出自标准状态（25 ℃，100 kPa）下。

参考文献

1. Vertika Shukla, Sandeep Negi, M.S.M Rawat, Geeta Pant, Akito Nagatsu. Chemical study of Ramalina africana (Ramalinaceae) from the Garhwal Himalayas. Biochemical Systematics and Ecology. 2004-04, 32 (4): 449–453 [2019-10-28]. doi:10.1016/j.bse.2003.08.010 （英语）.
2. Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (© 1994-2019 ACD/Labs). Retrieved from SciFinder. [2019-10-28]
3. Morris, DC; Safe, S; Subden, RE. Detection of the ergosterol and episterol isomers lichesterol and fecosterol in nystatin-resistant mutants of Neurospora crassa. Biochemical genetics. 1974, 12 (6): 459–66. PMID 4282021.