Structural Formula Vector Image
Title: Allocholesterol
CAS Registry Number: 517-10-2
CAS Name: (3b)-Cholest-4-en-3-ol
Additional Names: coprostenol; 4:5-coprosten-3-ol
Molecular Formula: C27H46O
Molecular Weight: 386.65
Percent Composition: C 83.87%, H 11.99%, O 4.14%
Literature References: Prepn: Windaus, Ann. 453, 101 (1927); Schoenheimer, Evans, J. Biol. Chem. 114, 567 (1936). Sepn from cholesterol: Stoll, Z. Physiol. Chem. 246, 10 (1937).
Properties: Needles from ether-methanol, mp 132°. [a]D23 +43.7° (c = 1 in benzene). Freely sol in benzene, acetone, ether, chloroform, dioxane, pyridine; less sol in methanol, alcohol. Pptd by digitonin. Deep-red color with 90% trichloroacetic acid.
Melting point: mp 132°
Optical Rotation: [a]D23 +43.7° (c = 1 in benzene)
Derivative Type: Acetate
Molecular Formula: C29H48O2
Molecular Weight: 428.69
Percent Composition: C 81.25%, H 11.29%, O 7.46%
Properties: Long needles from dil methanol, mp 85°.
Melting point: mp 85°

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