Title: Campesterol
CAS Registry Number: 474-62-4
CAS Name: (3b,24R)-Ergost-5-en-3-ol
Molecular Formula: C28H48O
Molecular Weight: 400.68
Percent Composition: C 83.93%, H 12.07%, O 3.99%
Literature 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°. [a]D23 -33° (22.5 mg in 5 ml chloroform).
Melting point: mp 157-158°
Optical Rotation: [a]D23 -33° (22.5 mg in 5 ml chloroform)
Derivative Type: Acetate
Molecular Formula: C30H50O2
Molecular Weight: 442.72
Percent Composition: C 81.39%, H 11.38%, O 7.23%
Properties: Crystals from alc, mp 137-138°. [a]D23 -35° (28.8 mg in 1 ml chloroform).
Melting point: mp 137-138°
Optical Rotation: [a]D23 -35° (28.8 mg in 1 ml chloroform)
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