1 73 Terpenoids and Steroids 



351 Squalene, C^oH-.o, pale yellow oil with blue fluorescence, b.p. 

 203° (0.15 mm.), Hd^" 1.4965. Often isolated as the hy- 

 drogen chloride addition product. 



Yeasts, Claviceps purpurea (ergot), Amanita phalloides 



Squalene may constitute as much as 16% of brewers' 

 yeast lipide. 



A. H. Cook, "The Chemistry and Biology of Yeasts," A. A. 

 Eddy, Aspects of the chemical composition of yeast. Academic 

 Press, New York, 1958, pp. 207-208. 



K. Taufel, H. Thaler and H. Schreyegg, Fettchem. Umschau 

 43 26 (1936). 



About 3 g. were obtained from 17 kg. of Amanita 

 phalloides. 



Heinrich Wieland and Gustav Coutelle, Ann. 548 275 

 (1941). 



Nearly 25% of the unsaponifiable fraction of the fat of 

 Torula utilis were found to be squalene. 



R. Reichert, Helv. Chim. Acta 28 484 (1945). 



352 Lanosterol (Kryptosterol, A®'^*-Lanostadien-3-ol), C30H50O, color- 

 less crystals, m.p. 138°, [ajn +62° (in chloroform). 



Yeasts 



Heinrich Wieland, Heinrich Pasedach and Albert Ballauf, 

 Ann. 529 68 (1937). 



