Date published: 2026-4-12

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SCH 28080 (CAS 76081-98-6)

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Alternate Names:
2-methyl-8-(phenylmethoxy)-imidazo[1,2-a]pyridine-3-acetonitrile
Application:
SCH 28080 is a potent inhibitor of H+,K+-ATPase
CAS Number:
76081-98-6
Purity:
≥98%
Molecular Weight:
277.32
Molecular Formula:
C17H15N3O
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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SCH 28080 is a potent inhibitor of H+,K+-ATPase (IC50 = 20 nM). SCH 28080 binds to the K+ recognition site and is competitive with respect to K+. Also inhibits gastric acid secretion in vitro. It operates through the inhibition of cyclooxygenase-2 (COX-2), an enzyme responsible for producing prostaglandins.


SCH 28080 (CAS 76081-98-6) References

  1. Conformation-dependent inhibition of gastric H+,K+-ATPase by SCH 28080 demonstrated by mutagenesis of glutamic acid 820.  |  Swarts, HG., et al. 1999. Mol Pharmacol. 55: 541-7. PMID: 10051539
  2. A chimeric gastric H+,K+-ATPase inhibitable with both ouabain and SCH 28080.  |  Asano, S., et al. 1999. J Biol Chem. 274: 6848-54. PMID: 10066737
  3. Inhibition of vascular smooth muscle tone by the H+, K+-ATPase inhibitor SCH 28080.  |  Rhoden, KJ. 2000. J Pharm Pharmacol. 52: 857-62. PMID: 10933137
  4. Sch-28080 depletes intracellular ATP selectively in mIMCD-3 cells.  |  Codina, J., et al. 2000. Am J Physiol Cell Physiol. 279: C1319-26. PMID: 11029278
  5. A hybrid between Na+,K+-ATPase and H+,K+-ATPase is sensitive to palytoxin, ouabain, and SCH 28080.  |  Farley, RA., et al. 2001. J Biol Chem. 276: 2608-15. PMID: 11054424
  6. The cavity structure for docking the K(+)-competitive inhibitors in the gastric proton pump.  |  Asano, S., et al. 2004. J Biol Chem. 279: 13968-75. PMID: 14699149
  7. SCH 28080 is a lumenally acting, K+-site inhibitor of the gastric (H+ + K+)-ATPase.  |  Keeling, DJ., et al. 1988. Biochem Pharmacol. 37: 2231-6. PMID: 2837231
  8. The H+/K+ ATPase Inhibitor SCH-28080 Inhibits Insulin Secretion and Induces Cell Death in INS-1E Rat Insulinoma Cells.  |  Jakab, M., et al. 2017. Cell Physiol Biochem. 43: 1037-1051. PMID: 28968600
  9. Inhibition of H+K+ATPase by SCH 28080 and SCH 32651.  |  Scott, CK. and Sundell, E. 1985. Eur J Pharmacol. 112: 268-70. PMID: 2993001
  10. Gastric antisecretory and cytoprotective activities of SCH 28080.  |  Long, JF., et al. 1983. J Pharmacol Exp Ther. 226: 114-20. PMID: 6864535
  11. A study of the inhibitory effects of SCH 28080 on gastric secretion in man.  |  Ene, MD., et al. 1982. Br J Pharmacol. 76: 389-91. PMID: 7104515
  12. Sch-28080 inhibits bafilomycin-sensitive H+ secretion in turtle bladder independently of luminal [K+].  |  Kohn, OF., et al. 1993. Am J Physiol. 265: F174-9. PMID: 8368331
  13. Mutational analysis of putative SCH 28080 binding sites of the gastric H+,K+-ATPase.  |  Asano, S., et al. 1997. J Biol Chem. 272: 17668-74. PMID: 9211917
  14. Dietary K+ restriction upregulates total and Sch-28080-sensitive bicarbonate absorption in rat tIMCD.  |  Wall, SM., et al. 1998. Am J Physiol. 275: F543-9. PMID: 9755126

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

SCH 28080, 10 mg

sc-204269
10 mg
$281.00

SCH 28080, 50 mg

sc-204269A
50 mg
$988.00