Date published: 2026-4-28

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5α-Cholestane (CAS 481-21-0)

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Application:
5α-Cholestane is a standard in cholesterol analysis by GC and HPLC, it is produced endogeneously in humans
CAS Number:
481-21-0
Molecular Weight:
372.67
Molecular Formula:
C27H48
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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5α-Cholestane is a cycloalkane with a five-carbon ring structure and a side chain consisting of four carbon atoms. Its mode of action involves binding to and regulating the function of proteins related to cholesterol metabolism, inflammation, and cancer. Specifically, 5α-Cholestane has demonstrated the ability to bind to and regulate the enzyme 3-hydroxy-3-methylglutaryl-CoA reductase (HMGCR), an important player in cholesterol metabolism.


5α-Cholestane (CAS 481-21-0) References

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  2. Faecal sterols determination in wastewater and surface water.  |  Gilli, G., et al. 2006. J Chromatogr B Analyt Technol Biomed Life Sci. 843: 120-4. PMID: 16787764
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  4. Manganese porphyrins catalyze selective C-H bond halogenations.  |  Liu, W. and Groves, JT. 2010. J Am Chem Soc. 132: 12847-9. PMID: 20806921
  5. Formation and inhibition of cholesterol oxidation products during marinating of pig feet.  |  Chen, YC., et al. 2012. J Agric Food Chem. 60: 173-9. PMID: 22117593
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  8. Surface occupancy plays a major role in cholesterol's condensing effect.  |  Krause, MR., et al. 2013. Langmuir. 29: 10303-6. PMID: 23902525
  9. Direct Sampling and Analysis of Atmospheric Particulate Organic Matter by Proton-Transfer-Reaction Mass Spectrometry.  |  Müller, M., et al. 2017. Anal Chem. 89: 10889-10897. PMID: 28911223
  10. High-volume steroid isotopic standards developed as working standards for gas chromatography-combustion-isotope ratio mass spectrometry.  |  Tobias, HJ. and Brenna, JT. 2018. Drug Test Anal. 10: 781-785. PMID: 28960904
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  14. A simplified method for the determination of steroids in diets and faeces.  |  Roseleur, OJ. and van Gent, CM. 1978. Clin Chim Acta. 82: 13-23. PMID: 618675
  15. GLC determination of aprindine: quantitation and stability measurement.  |  Rutherford, BS. and Bishara, RH. 1976. J Pharm Sci. 65: 1322-5. PMID: 966145
  16. New method for determination of fecal sterols in urine using non-chlorinated solvents.  |  Börjesson, E., et al. 1998. J Chromatogr B Biomed Sci Appl. 713: 438-42. PMID: 9746261

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

5α-Cholestane, 100 mg

sc-214348
100 mg
$92.00

5α-Cholestane, 1 g

sc-214348A
1 g
$235.00