All Photos(2)
Synonym(s):
24-dehydrocholesterol; 5,24-cholestadien-3β-ol; 110798
Empirical Formula (Hill Notation):
C27H44O
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description
3β-hydroxy-5,24-cholestadiene
Assay
>99% (TLC)
form
powder
packaging
pkg of 1 × 10 mg (700060P-10mg)
pkg of 1 × 5 mg (700060P-5mg)
manufacturer/tradename
Avanti Polar Lipids
shipped in
dry ice
storage temp.
−20°C
InChI
1S/C27H44O/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/h7,9,19,21-25,28H,6,8,10-17H2,1-5H3/t19-,21+,22+,23-,24+,25+,26+,27-/m1/s1
InChI key
AVSXSVCZWQODGV-DPAQBDIFSA-N
General description
Desmosterol lacks a double bond between C24 and C25 compared to cholesterol. It is present in the membrane of spermatozoa and astrocytes and is the major brain sterol.
Application
Desmosterol has been used as a sterol to test its interaction with human protein Mincle and as an internal standard in ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS). It may be used as in the preparation of lipid monolayers.
Biochem/physiol Actions
Desmosterol is a precursor of cholesterol in the Bloch pathway and the enzyme 24-dehydrocholesterol reductase catalyzes this step. Desmosterol accumulates during impairment of 24-dehydrocholesterol reductase enzyme thereby leading to desmosterolosis. Desmosterol is a liver X receptor (LXR) agonist . It is a potential therapeutic target for treating the neurodegenerative disorder. Desmosterol regulates inflammatory signaling in macrophages.
Packaging
5 mL Amber Glass Screw Cap Vial (700060P-10mg)
5 mL Amber Glass Screw Cap Vial (700060P-5mg)
also commonly purchased with this product
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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María de Las Mercedes Carro et al.
Biochimica et biophysica acta. Biomembranes, 1862(9), 183357-183357 (2020-05-18)
Ram sperm are particularly sensitive to freeze-thawing mainly due to their lipid composition, limiting their use in artificial insemination programs. We evaluated the extent of cholesterol and desmosterol incorporation into ram sperm through incubation with increasing concentrations of methyl-β-cyclodextrin (MβCD)-sterol
Saara Vainio et al.
The Journal of biological chemistry, 281(1), 348-355 (2005-10-27)
Desmosterol is an immediate precursor of cholesterol in the Bloch pathway of sterol synthesis and an abundant membrane lipid in specific cell types. The significance of the difference between the two sterols, an additional double bond at position C24 in
Phillip A Wages et al.
Journal of lipid research, 59(10), 1916-1926 (2018-08-09)
Regulating blood cholesterol (Chol) levels by pharmacotherapy has successfully improved cardiovascular health. There is growing interest in the role of Chol precursors in the treatment of diseases. One sterol precursor, desmosterol (Des), is a potential pharmacological target for inflammatory and
Maurice Jansen et al.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 27(3), 865-870 (2012-12-12)
The brain is the most cholesterol-enriched tissue in the body. During brain development, desmosterol, an immediate precursor of cholesterol, transiently accumulates up to 30% of total brain sterols. This massive desmosterol deposition appears to be present in all mammalian species
Guangtao Li et al.
Journal of lipid research, 61(5), 758-766 (2020-01-23)
The formation and properties of liquid-ordered (Lo) lipid domains (rafts) in the plasma membrane are still poorly understood. This limits our ability to manipulate ordered lipid domain-dependent biological functions. Giant plasma membrane vesicles (GPMVs) undergo large-scale phase separations into coexisting
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