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重要文件

C8667

Sigma-Aldrich

胆固醇

Sigma Grade, ≥99%

同義詞:

3β-羟基-5-胆甾烯, 5-胆甾烯-3β-醇

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About This Item

經驗公式(希爾表示法):
C27H46O
CAS號碼:
分子量::
386.65
Beilstein:
1915888
EC號碼:
MDL號碼:
分類程式碼代碼:
12352111
eCl@ss:
39023139
PubChem物質ID:
NACRES:
NA.77

生物源

sheep wool

等級

Sigma Grade

化驗

≥99%

形狀

powder

bp

360 °C (lit.)

mp

147-149 °C (lit.)

溶解度

water: soluble 0.00003 g/L at 20 °C

密度

1.067 g/mL at 25 °C (lit.)

運輸包裝

ambient

儲存溫度

−20°C

SMILES 字串

CC(C)CCC[C@@H](C)[C@H]1CC[C@H]2[C@@H]3CC=C4C[C@@H](O)CC[C@]4(C)[C@H]3CC[C@]12C

InChI

1S/C27H46O/c1-18(2)7-6-8-19(3)23-11-12-24-22-10-9-20-17-21(28)13-15-26(20,4)25(22)14-16-27(23,24)5/h9,18-19,21-25,28H,6-8,10-17H2,1-5H3/t19-,21+,22+,23-,24+,25+,26+,27-/m1/s1

InChI 密鑰

HVYWMOMLDIMFJA-DPAQBDIFSA-N

基因資訊

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應用

用于色谱的标准品
胆固醇用于制备免疫刺激复合物以增强细胞和体液反应。它被掺入动物饲料中以研究富含胆固醇饮食的影响。

生化/生理作用

所有生物膜的主要成分;总脑脂质中约25%为胆固醇。
胆固醇是一种占到细胞膜结构成分约20-25%的脂质。它决定了膜的流动性和渗透性,使其可透过水而不是离子和质子。胆固醇还可调节质膜上存在的转运蛋白和信号蛋白的功能。胆固醇合成的主要部位是小肠和肝脏。

準備報告

胆固醇一水合物在热酒精中可产生透明无色至淡黄色的溶液。它还可溶于丙酮、二恶烷、乙酸乙酯、苯、石油醚、油、脂肪和胆盐的水溶液中。溶液应当避光保存。

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)


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文章

Biosynthesis of cholesterol generally takes place in the endoplasmic reticulum of hepatic cells and begins with acetyl- CoA, which is mainly derived from an oxidation reaction in the mitochondria. Acetyl-CoA and acetoacetyl-CoA are converted to 3-hydroxy- 3-methylglutaryl-CoA (HMG-CoA) by HMG-CoA synthase.

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