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Dihydrocholesterol

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Dihydrocholesterol Basic information

Product Name:
Dihydrocholesterol
Synonyms:
  • β-Cholestanol (contains α-Cholestanol)
  • (3beta,5alpha)-cholestan-3-o
  • 5alpha-Cholestanol
  • 5alpha-Dihydrocholesterol
  • Cholestan-3beta-ol
  • Cholestan-3-ol, (3beta,5alpha)-
  • Dihydrocholesterin
  • BETA-CHOLESTANOL
CAS:
80-97-7
MF:
C27H48O
MW:
388.68
EINECS:
201-315-8
Product Categories:
  • Inhibitors
  • Steroids
Mol File:
80-97-7.mol
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Dihydrocholesterol Chemical Properties

Melting point:
138-142 °C
alpha 
D22 +24.2° (c = 1.3 in chloroform)
Boiling point:
454.32°C (rough estimate)
Density 
0.9506 (rough estimate)
refractive index 
1.5250 (estimate)
storage temp. 
-20°C
solubility 
chloroform: 0.1 g/mL, clear, colorless
pka
15.14±0.70(Predicted)
form 
A solid
color 
White to off-white
Water Solubility 
Insoluble in water.
Merck 
14,2200
BRN 
2418594
Stability:
Stable. Combustible. Incompatible with strong oxidizing agents.
LogP
10.065 (est)
CAS DataBase Reference
80-97-7(CAS DataBase Reference)
NIST Chemistry Reference
Cholestanol(80-97-7)
EPA Substance Registry System
Dihydrocholesterol (80-97-7)
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Safety Information

Hazard Codes 
Xn
Risk Statements 
22-38-40-48/20/22-67-36/38-20-63
Safety Statements 
24/25-36/37-22-26
RIDADR 
UN 1888 6.1/PG 3
WGK Germany 
3
RTECS 
FZ6350000
TSCA 
Yes
HS Code 
2906 13 10

MSDS

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Dihydrocholesterol Usage And Synthesis

Description

Cholestanol is a cholesterol metabolite formed by oxidation and an intermediate in the biosynthesis of chenodeoxycholic acid . Cholestanol (10 μg/ml) induces apoptosis in cornea and lens epithelial cells and increases the activity of IL-1β converting enzyme (ICE) and CPP32 proteases. Dietary administration of 1% cholestanol to mice increases serum and liver cholestanol levels and leads to corneal opacities and gallstones and in rats it leads to cholestanol deposition in the cerebellum. Cholestanol levels are increased in plasma of patients with cerebrotendinous xanthomatosis (CTX), a disease characterized by a deficiency in the mitochondrial enzyme sterol 27-hydrolylase (CYP27A1) that leads to progressive neurological symptoms.

Chemical Properties

white powder

Uses

5alpha-Cholestan-3beta-ol is used as a standard in lipid analysis using HPLC. It acts as a derivitized steroid compound. It is used in agrochemical, pharmaceutical and dyestuff field .

Uses

5α-Cholestan-3β-ol is a carbon stanol formed from biohydrogenation of Cholesterol (C432501) in the gut. Studies have also examined the conversion of 5α-Cholestan-3β-ol catalyzed by 3-β-hydroxysteroid dehydrogenase of rat liver.

Definition

ChEBI: A cholestanoid that is (5alpha)-cholestane substituted by a beta-hydroxy group at position 3.

General Description

Cholestanol is a 5α-dihydro derivative of cholesterol. It acts as a marker for cholesterol absorption. Cholestanol is a steroid with 27 carbon atoms.

Biochem/physiol Actions

5α-Cholestan-3β-ol is derived from cholesterol by the action of intestinal microorganisms. It is known to induce the formation of gall stones in rabbits in the presence of sodium ions.

Purification Methods

Purify 5--cholestan-3-ol via acetylation, crystallisation and de-acetylation, then recrystallisation from EtOH or slightly aqueous EtOH, or MeOH. Its solubility is: 0.5% (MeOH) and 1% (EtOH) at 25o. [Mizutani & Whitten J Am Chem Soc 107 3621 1985.] The acetate has m 114-115o from EtOAc/MeOH and, [] D 20 +13o (c 2, CHCl3). [Bruce & Ralls Org Synth Col Vol II 191 1943, Beilstein 6 IV 3577.]

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