E-Cholesterol Alkyne

Catalog#
Unit Size
Price (USD)
Availability
Qty
1411-1
1 mg
$195.00
In stock
1411-5
5 mg
$495.00
In stock
1411-25
25 mg
$1,295.00
In stock

This reagent is a modified lipid containing an omega-terminal alkyne. The terminal alkyne group can be used in a highly specific linking reaction with azide-containing reagents, known as ‘click chemistry’, in the presence of a copper (Cu)-containing catalyst.

E-Cholesterol Alkyne (19-ethynylcholesterol) represents a versatile, sensitive, and easy-to-use tool for tracking cellular cholesterol metabolism and localization as it allows for manifold detection methods including mass spectrometry, and fluorescence microscopy.

Molecular weight
396.66
Chemical composition
C28H44O
CAS
na/
Solubility
DMSO, DMF
Purity
>95% (H NMR)
Appearance
White crystalline
Storage conditions
-20°C.
Shipping conditions
Ambient temperature

This reagent is a modified lipid containing an omega-terminal alkyne. The terminal alkyne group can be used in a highly specific linking reaction with azide-containing reagents, known as ‘click chemistry’, in the presence of a copper (Cu)-containing catalyst.

E-cholesterol Alkyne (19-ethynylcholesterol) is accepted by cellular enzymes from different biological species (Brevibacterium, yeast, rat, human) and these enzymes include cholesterol oxidases, hydroxylases, and acyl transferases that generate the expected metabolites in in vitro and in vivo assays. Using fluorescence microscopy, researchers can study the distribution of cholesterol at subcellular resolution, detecting the lipid in the Golgi and at the plasma membrane, but also in the endoplasmic reticulum and mitochondria.

In summary, alkyne cholesterol represents a versatile, sensitive, and easy-to-use tool for tracking cellular
cholesterol metabolism and localization as it allows for manifold detection methods including mass spectrometry, and fluorescence microscopy.

1. Jao C.Y., et al. (2015). Bioorthogonal Probes for Imaging Sterols in Cells. Chembiochem., 16, 611-7. [PubMed]

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