Date published: 2026-5-7

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24-Nor Ursodeoxycholic Acid (CAS 99697-24-2)

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Alternate Names:
(3α,5β,7β)-3,7-Dihydroxy-24-norcholan-23-oic Acid; 3α,7β-Dihydroxy-24-nor-5β-cholan-23-oic Acid; Norursodeoxycholic Acid
CAS Number:
99697-24-2
Molecular Weight:
378.55
Molecular Formula:
C23H38O4
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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24-Nor Ursodeoxycholic Acid is a modified bile acid that has become the subject of various research studies focusing on hepatic physiology and the metabolism of cholesterol. In the realm of biochemistry, it is studied for its role in modulating bile acid pools and their enterohepatic circulation, which is essential for understanding lipid digestion and absorption. Studies involving this compound contribute to the knowledge of bile acid synthesis pathways and their regulatory mechanisms. Additionally, 24-Nor Ursodeoxycholic Acid is used in the investigation of the physical-chemical properties of bile, such as micelle formation and solubilization of lipids. Environmental scientists also study this compound to trace the transformation and fate of steroidal compounds in aquatic ecosystems.


24-Nor Ursodeoxycholic Acid (CAS 99697-24-2) References

  1. Pharmacotherapy of cholestatic liver diseases.  |  Paumgartner, G. 2010. J Dig Dis. 11: 119-25. PMID: 20579215
  2. Nor-ursodeoxycholic acid reverses hepatocyte-specific nemo-dependent steatohepatitis.  |  Beraza, N., et al. 2011. Gut. 60: 387-96. PMID: 21115542
  3. Loss of CFTR affects biliary epithelium innate immunity and causes TLR4-NF-κB-mediated inflammatory response in mice.  |  Fiorotto, R., et al. 2011. Gastroenterology. 141: 1498-508, 1508.e1-5. PMID: 21712022
  4. Differential effects of norUDCA and UDCA in obstructive cholestasis in mice.  |  Fickert, P., et al. 2013. J Hepatol. 58: 1201-8. PMID: 23369794
  5. 24-nor-ursodeoxycholic acid ameliorates inflammatory response and liver fibrosis in a murine model of hepatic schistosomiasis.  |  Sombetzki, M., et al. 2015. J Hepatol. 62: 871-8. PMID: 25463533
  6. Vector-mediated microRNA-21 silencing ameliorates granulomatous liver fibrosis in Schistosoma japonicum infection.  |  Sombetzki, M., et al. 2015. Hepatology. 61: 1787-9. PMID: 25684616
  7. Potential of nor-Ursodeoxycholic Acid in Cholestatic and Metabolic Disorders.  |  Trauner, M., et al. 2015. Dig Dis. 33: 433-9. PMID: 26045280
  8. Therapy of Primary Sclerosing Cholangitis--Today and Tomorrow.  |  Halilbasic, E., et al. 2015. Dig Dis. 33 Suppl 2: 149-63. PMID: 26641242
  9. Influence of 24-Nor-Ursodeoxycholic Acid on Hepatic Disposition of [(18)F]Ciprofloxacin, a Positron Emission Tomography Study in Mice.  |  Wanek, T., et al. 2016. J Pharm Sci. 105: 106-12. PMID: 26852845
  10. Therapeutic Mechanisms of Bile Acids and Nor-Ursodeoxycholic Acid in Non-Alcoholic Fatty Liver Disease.  |  Steinacher, D., et al. 2017. Dig Dis. 35: 282-287. PMID: 28249257
  11. Semisynthetic bile acids: a new therapeutic option for metabolic syndrome.  |  Lazarević, S., et al. 2019. Pharmacol Res. 146: 104333. PMID: 31254667
  12. Evidence for functional selectivity in TUDC- and norUDCA-induced signal transduction via α5β1 integrin towards choleresis.  |  Bonus, M., et al. 2020. Sci Rep. 10: 5795. PMID: 32242141
  13. Monomeric bile acids modulate the ATPase activity of detergent-solubilized ABCB4/MDR3.  |  Kroll, T., et al. 2021. J Lipid Res. 62: 100087. PMID: 34022183
  14. Beneficial effects of UDCA and norUDCA in a rodent model of steatosis are linked to modulation of GPBAR1/FXR signaling.  |  Marchianò, S., et al. 2022. Biochim Biophys Acta Mol Cell Biol Lipids. 1867: 159218. PMID: 35985473

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

24-Nor Ursodeoxycholic Acid, 1 mg

sc-478796
1 mg
$401.00