27-Alkyne cholesterol
27-Alkyne cholesterol 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-containing catalyst. 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.
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- CAS No.: 1527467-07-7
- Formula: C28H44O
- Molecular Weight:396.65
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
Description
Chemical Information
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CAS No. 1527467-07-7
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Molecular Weight 396.65
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Formula C28H44O
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SMILES
C[C@]1(CC2)[C@](CC[C@]1([H])[C@H](C)CCC[C@@H](C)C#C)([H])[C@@](CC=C3C[C@H]4O)([H])[C@@]2([H])[C@]3(CC4)C
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Protocols
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EdU Incorporation Assay (Click Chemistry-Based DNA Synthesis Measurement)
The EdU incorporation assay measures DNA synthesis by adding the thymidine analog 5-ethynyl-2′-deoxyuridine to cells or tissues, where it is incorporated into newly synthesized DNA during S phase. Incorporated EdU is detected by copper-catalyzed azide-alkyne cycloaddition, in which a fluorescent azide covalently reacts with the ethynyl group on EdU, allowing S-phase cells to be detected by fluorescence microscopy, flow cytometry, or high-content imaging. EdU detection does not require DNA denaturation or anti-BrdU antibody access, which preserves sample structure and improves compatibility with immunostaining and multiparameter cytometry compared with BrdU-based detection. EdU can be cytotoxic in a cell-type- and exposure-dependent manner, so pulse duration, concentration, and continuous-labeling designs should be validated for each cell type.
Purity & Documentation
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)