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700032P

Avanti

5α,6α-epoxycholestanol

Avanti Research™ - A Croda Brand

Synonym(s):

5α,6α-epoxy-cholesterol; 5α,6α-epoxy-5α-cholestan-3β-ol; cholesterol-5α,6α-epoxide; 110804

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About This Item

Empirical Formula (Hill Notation):
C27H46O2
CAS Number:
1250-95-9
Molecular Weight:
402.65
UNSPSC Code:
12352211
NACRES:
NA.25

description

cholestanol, 5α,6α-epoxy

Assay

>99% (TLC)

form

powder

packaging

pkg of 1 × 5 mg (700032P-5mg)

manufacturer/tradename

Avanti Research™ - A Croda Brand

shipped in

dry ice

storage temp.

−20°C

InChI

1S/C27H46O2/c1-17(2)7-6-8-18(3)21-9-10-22-20-15-24-27(29-24)16-19(28)11-14-26(27,5)23(20)12-13-25(21,22)4/h17-24,28H,6-16H2,1-5H3/t18-,19+,20+,21-,22+,23+,24+,25-,26-,27+/m1/s1

InChI key

PRYIJAGAEJZDBO-ZEQHCUNVSA-N

General description

5α,6α-epoxycholestanol (5α,6α-EC) is generated by cholesterol epoxidation and is a diastereoisomer of 5β,6β-epoxycholestanol (5β,6β-EC).

Application

5α,6α-epoxycholestanol has been used as a sterol internal standard in ultra-performance liquid chromatography–high resolution mass spectrometry (UPLC-ESI-HRMS) analysis to quantify mice brain sterols. It may be used in calibration curve generation for the quantification of phytosterols in food samples and as an internal standard for oxysterol quantification in biological samples by gas chromatography-mass spectrometry (GC-MS)

Biochem/physiol Actions

5α,6α-epoxycholestanol (5α,6α-EC) is a liver X receptor (LXR) antagonist. It mimics cholesterol in phosphatidylcholine vesicles and is a substrate for acyl-coenzyme A:cholesterol acyltransferase (ACAT). 5α,6α-EC is employed in anticancer treatments. It is catabolized by the enzyme cholesterol-5,6-epoxide hydrolase (ChEH) enzyme to 3β,5α,6β-triol. 5α,6α-EC impairs redox state and affects atherogenesis. The levels of 5α,6α-EC is elevated in hypercholesterolemia and mediates steroid receptor coactivator (SRC) recruitment.

Packaging

5 mL Amber Glass Screw Cap Vial (700032P-5mg)

Legal Information

Avanti Research is a trademark of Avanti Polar Lipids, LLC

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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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Sigma-Aldrich

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Cholesterol

Identification of 5alpha, 6alpha-epoxycholesterol as a novel modulator of liver X receptor activity
Berrodin TJ, et al.
Molecular Pharmacology, 78(6), 1046-1058 (2010)
Development and validation of methodologies for the quantification of phytosterols and phytosterol oxidation products in cooked and baked food products
Menendez-Carreno M, et al.
Journal of Chromatography A, 1428, 316-325 (2016)
The influence of an obesogenic diet on oxysterol metabolism in C57BL/6J mice
Wooten JS, et al.
Cholesterol, 2014 (2014)
Improvement of 5, 6alpha-epoxycholesterol, 5, 6beta-epoxycholesterol, cholestane-3beta, 5alpha, 6beta-triol and 6-oxo-cholestan-3beta, alpha-diol recovery for quantification by GC/MS
Soules R, et al.
Chemistry and Physics of Lipids, 207, 92-98 (2017)
Cholesterol is superior to 7-ketocholesterol or 7alpha-hydroxycholesterol as an allosteric activator for acyl-coenzyme A: cholesterol acyltransferase 1
Zhang Y, et al.
The Journal of Biological Chemistry, 278(13), 11642-11647 (2003)
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