1729. Campesterol
Nomenclature
CAS number: 474-62-4
(3β,24R)-Ergost-5-en-3-ol. C28H48O; mol wt 400.68.
C 83.93%, H 12.07%, O 3.99%.
Description and references
Small amounts are found in rape-seed oil derived from Brassica campestris L., Cruciferae, in soybean oil, and in wheat germ oil. Isoln: Fernholz, MacPhillamy, J. Am. Chem. Soc. 63, 1155 (1941). Structure: Fernholz, Ruigh, ibid. 1157. Synthesis: Tarzia et al., Gazz. Chim. Ital. 97, 102 (1967), C.A. 67, 32883q (1967).
Properties
Crystals from acetone, mp 157-158°. [α]D23 -33° (22.5 mg in 5 ml chloroform).Derivative
Acetate.C30H50O2; mol wt 442.72.
C 81.39%, H 11.38%, O 7.23%.