Date published: 2026-2-2

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21(S)-Hydroxy Montelukast (CAS 184763-29-9)

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Alternate Names:
[R-[R*,S*-(E)]]-1-[[[1-[3-[2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-hydroxy-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]-cyclopropaneacetic Acid; Montelukast M5a
Application:
21(S)-Hydroxy Montelukast is a montelukast metabolite
CAS Number:
184763-29-9
Molecular Weight:
602.18
Molecular Formula:
C35H36ClNO4S
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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21(S)-Hydroxy Montelukast is a synthetic compound and a member of the leukotriene receptor antagonist class, related to Montelukast. This substance is engineered to update the original compound′s specific and unique properties. 21(S)-Hydroxy Montelukast has undergone research regarding its anti-inflammatory properties and has been studied in the context of neurodegenerative conditions strictly in research applications. Its mode of action involves blocking the leukotriene receptor, which mitigates the effects of leukotrienes, compounds known to promote inflammation.


21(S)-Hydroxy Montelukast (CAS 184763-29-9) References

  1. Montelukast dose selection in 6- to 14-year-olds: comparison of single-dose pharmacokinetics in children and adults.  |  Knorr, B., et al. 1999. J Clin Pharmacol. 39: 786-93. PMID: 10434229
  2. In Vitro Metabolism of Montelukast by Cytochrome P450s and UDP-Glucuronosyltransferases.  |  Cardoso, Jde O., et al. 2015. Drug Metab Dispos. 43: 1905-16. PMID: 26374173
  3. Metabolic profiles of montelukast sodium (Singulair), a potent cysteinyl leukotriene1 receptor antagonist, in human plasma and bile.  |  Balani, SK., et al. 1997. Drug Metab Dispos. 25: 1282-7. PMID: 9351905

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

21(S)-Hydroxy Montelukast, 0.5 mg

sc-206557
0.5 mg
$533.00