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Merck
CN

C79409

Cholesteryl stearate

96%

Synonym(s):

5-Cholesten-3β-yl octadecanoate

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About This Item

Empirical Formula (Hill Notation):
C45H80O2
CAS Number:
Molecular Weight:
653.12
UNSPSC Code:
12352108
NACRES:
NA.22
PubChem Substance ID:
EC Number:
252-637-0
Beilstein/REAXYS Number:
2068492
MDL number:
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Product Name

Cholesteryl stearate, 96%

InChI

1S/C45H80O2/c1-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-25-43(46)47-38-30-32-44(5)37(34-38)26-27-39-41-29-28-40(36(4)24-22-23-35(2)3)45(41,6)33-31-42(39)44/h26,35-36,38-42H,7-25,27-34H2,1-6H3/t36-,38+,39+,40-,41+,42+,44+,45-/m1/s1

InChI key

XHRPOTDGOASDJS-XNTGVSEISA-N

SMILES string

CCCCCCCCCCCCCCCCCC(=O)O[C@H]1CC[C@]2(C)C3CC[C@]4(C)C(CCC4C3CC=C2C1)[C@H](C)CCCC(C)C

assay

96%

form

powder

optical activity

[α]25/D −21°, c = 2 in chloroform

mp

79-83 °C (lit.)

transition temp

cholesteric phase to smectic phase 75.5 °C
isotropic phase to cholesteric phase 79.5 °C
crystalline phase to isotropic phase 83 °C

Quality Level

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Application

It can be used as a reference standard during the determination of tocopherols and sterols in vegetable oils by GC.

General description

Cholesteryl stearate is a stearic acid ester of cholesterol. In solid-state, its autoxidation is higher than its free form.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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Autoxidation of cholesterol fatty acid esters in solid state and aqueous dispersion.
Korahani V, et al.
Lipids, 17(10), 703-708 (1982)
Determination of tocopherols and sterols in vegetable oils by solid-phase extraction and subsequent capillary gas chromatographic analysis.
Lechner M, et al.
Journal of Chromatography A, 857(1), 231-238 (1999)
Laura Carreón-Palau et al.
Marine drugs, 18(12) (2020-12-03)
Triterpenoid biosynthesis is generally anaerobic in bacteria and aerobic in Eukarya. The major class of triterpenoids in bacteria, the hopanoids, is different to that in Eukarya, the lanostanoids, and their 4,4,14-demethylated derivatives, sterols. In the deep sea, the prokaryotic contribution
J Robin Harris et al.
Journal of structural biology, 139(2), 122-135 (2002-10-31)
The Vibrio cholerae cytolysin (VCC) 63-kDa monomer has been shown to interact in aqueous suspension with cholesterol microcystals to produce a ring/pore-like heptameric oligomer approximately 8 nm in outer diameter. Transmission electron microscopy data were produced from cholesterol samples adsorbed
M Cabeza et al.
Proceedings of the Western Pharmacology Society, 40, 87-89 (1997-01-01)
We demonstrated for the first time that progesterone and 5 alpha-dihydroprogesterone stimulate [U-14C]glucose incorporation into lipids in gonadectomized female hamster flanking organs. We also found that cholesterol stearate is the major lipid synthesized female hamster flanking organs under progesterone and

Articles

Cholesterol esterification enhances transport efficiency in lipoproteins for increased blood stream transport.

胆固醇酯化可改善运输。胆固醇酯可更轻松地封装在脂蛋白内部-增加了在血液中可轻松运输的胆固醇数量。

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