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C8753

Sigma-Aldrich

Cholesteryl arachidonate

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

Synonym(s):

3β-Hydroxy-5-cholestene 3-arachidonate, 5-Cholesten-3β-ol 3-arachidonate, Cholesteryl eicosatetraenoate

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About This Item

Empirical Formula (Hill Notation):
C47H76O2
CAS Number:
604-34-2
Molecular Weight:
673.11
MDL number:
MFCD00056441
UNSPSC Code:
12352211
PubChem Substance ID:
24893099
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

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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M Aviram et al.
Free radical biology & medicine, 26(7-8), 892-904 (1999-05-08)
Human serum paraoxonase (PON1) can protect low density lipoprotein (LDL) from oxidation induced by either copper ion or by the free radical generator azo bis amidinopropane hydrochloride (AAPH). During LDL oxidation in both of these systems, a time-dependent inactivation of
J M Smaby et al.
Biochemistry, 20(4), 724-730 (1981-02-17)
Surface pressure--area isotherms for binary mixtures of cholesteryl octanoate, elaidate, stearate, oleate, linoleate, linolenate, and arachiodonate in mixtures with dioleoyllecithin, triolein, oleic acid, and oleoyl alcohol were measured at 24 degrees C. Analysis of the pressure and area characteristics as
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
J V Hunt et al.
Atherosclerosis, 98(2), 229-239 (1993-01-25)
Flow cytometry has been examined as a method for quantitative measurement of the accumulation in macrophages of ceroid, an autofluorescent polymer composed of oxidised protein and lipid. Murine peritoneal macrophages were cultured in the presence of cholesteryl linoleate- or arachidonate-bovine
M Van Heek et al.
The Journal of biological chemistry, 273(31), 19405-19410 (1998-07-25)
Both oxidized low density lipoprotein (ox-LDL) and platelet-derived growth factor (PDGF) have been implicated in the genesis of various inflammatory responses, including atherosclerosis. We demonstrate here a novel interaction between specific oxidized lipids derived from ox-LDL and PDGF. The lipid
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