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80-97-7CC(C)CCCC(C)C1CCC2C3CC[C@H]4C[C@@H](O)CCC4(C)C3CCC12C80-97-7CHEBI:143743化学的特性It appears as a white crystalline powder and is odourless. The substance is insoluble in water but readily soluble in organic solvents such as chloroform, ethanol and diethyl ether.¹ Its specific rotation is +24.2° (22 °C, in chloroform).
安全情報は参考情報です。供給元の安全データシート(SDS)、適用法令、専門家による評価に代わるものではありません。
説明Dihydrocholesterol (cholestanol; 5α-cholestan-3β-ol) 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.
使用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.
一般的な説明Cholestanol is a 5α-dihydro derivative of cholesterol. It acts as a marker for cholesterol absorption. Cholestanol is a steroid with 27 carbon atoms.
純化方法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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定義本品は、次の化学式で表されるステロールである。
定義ChEBI: Dihydrocholesterol is a cholestanoid that is (5alpha)-cholestane substituted by a beta-hydroxy group at position 3. It is a 3beta-hydroxy steroid and a cholestanoid. It derives from a hydride of a 5alpha-cholestane.