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C8753

Sigma-Aldrich

Cholesteryl arachidonate

≥95% (HPLC; detection at 205 nm), viscous liquid

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Synonym(s):
3β-Hydroxy-5-cholestene 3-arachidonate, 5-Cholesten-3β-ol 3-arachidonate, Cholesteryl eicosatetraenoate
Empirical Formula (Hill Notation):
C47H76O2
CAS Number:
Molecular Weight:
673.11
MDL number:
PubChem Substance ID:
NACRES:
NA.77

Assay

≥95% (HPLC; detection at 205 nm)

form

viscous liquid

color

clear

functional group

ester

shipped in

dry ice

storage temp.

−20°C

SMILES string

CCCCC\C=C\C\C=C\C\C=C\C\C=C\CCCC(=O)OC1CCC2(C)C3CCC4(C)C(CCC4C3CC=C2C1)C(C)CCCC(C)C

InChI

1S/C47H76O2/c1-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-27-45(48)49-40-32-34-46(5)39(36-40)28-29-41-43-31-30-42(38(4)26-24-25-37(2)3)47(43,6)35-33-44(41)46/h11-12,14-15,17-18,20-21,28,37-38,40-44H,7-10,13,16,19,22-27,29-36H2,1-6H3/b12-11+,15-14+,18-17+,21-20+

InChI key

IMXSFYNMSOULQS-SXXSVFILSA-N

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This Item
C9253C0289C2800
Cholesteryl oleate ≥98% (HPLC; detection at 205 nm)

Sigma-Aldrich

C9253

Cholesteryl oleate

Cholesteryl linoleate ≥98% (HPLC; detection at 205 nm)

Sigma-Aldrich

C0289

Cholesteryl linoleate

form

viscous liquid

form

powder

form

powder

form

crystalline powder

color

clear

color

-

color

-

color

-

functional group

ester

functional group

ester

functional group

ester

functional group

ester

shipped in

dry ice

shipped in

ambient

shipped in

ambient

shipped in

ambient

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

Application

Cholesteryl arachidoante was oxidized and used to study the biological effects.

Biochem/physiol Actions

Cholesteryl arachidonate is a cholesterol ester found associated with the neutral core of low density lipoprotein. Receptor-LDL complexes are taken up by lysosomes and hydrolyzed to release cholesterol from the esters. The enzyme acid cholesteryl ester hydrolase is responsible for the hydrolysis of cholesteryl esters; a defective enzyme can result in the formation of atherosclerotic lesions in humans.

Preparation Note

Cholesteryl arachidonate is a clear, colorless viscous liquid in chloroform.

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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C Pollaud et al.
Biochimica et biophysica acta, 1259(3), 211-219 (1995-12-07)
The aim of our work was to evaluate the influence of native low density lipoproteins (LDL) and LDL chemically modified by acetylation (acLDL) on incorporation and release of arachidonic acid (AA) in rat peritoneal macrophages. Compared to a control group
J L Kerwin et al.
Lipids, 31(11), 1179-1188 (1996-11-01)
Lagenidium giganteum, a facultative parasite of mosquito larvae, cannot synthesize sterols, and requires an exogenous source of these lipids in order to enter its reproductive cycle. This parasite grows vegetatively in the absence of sterols, but requires cholesterol or structurally
The mobility of cholesteryl esters in native and reconstituted low density lipoprotein as monitored by nuclear magnetic resonance spectroscopy.
P A Kroon et al.
The Journal of biological chemistry, 256(11), 5340-5344 (1981-06-10)
N P Odushko et al.
Kardiologiia, 24(10), 90-93 (1984-10-01)
The blood serum of coronary and liver patients was shown to display a similar increase in the relative levels of cholesterololeate and a some what less marked elevation in the content of cholesterol esters with saturated fatty acids. The cholesterollinoleate
Huiyong Yin et al.
Analytical biochemistry, 313(2), 319-326 (2003-02-28)
Autoxidation of polyunsaturated fatty acids and esters leads to a complex mixture containing hydroperoxides and cyclic peroxides. The oxidation mixture of cholesteryl arachidonate, which has been characterized by a variety of mass spectrometry techniques, was subject to analysis by conventional

Articles

Cholesterol undergoes esterification to improve transport. Cholesterol esters are more easily packaged into the interior of lipoproteins - increasing the quantity that can be readily transported in the blood stream.

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