Date published: 2026-4-12

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Cl-HIBO (CAS 909400-43-7)

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Alternate Names:
Chloro-homoibotenic acid
Application:
Cl-HIBO is Chloro-homoibotenic acid, a highly desensitising AMPA receptor agonist. Subtype selective for GluR1 and GluR2 subunit-containing receptors
CAS Number:
909400-43-7
Molecular Weight:
206.58
Molecular Formula:
C6H7ClN2O4
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
Available in US only.
* Refer to Certificate of Analysis for lot specific data.

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Cl-HIBO is a hghly desensitising AMPA receptor agonist. Subtype selective for GluR1 and GluR2 subunit-containing receptors. Cl-HIBO is an activator of GluR-1 and GluR-2.


Cl-HIBO (CAS 909400-43-7) References

  1. Design, synthesis, and pharmacology of a highly subtype-selective GluR1/2 agonist, (RS)-2-amino-3-(4-chloro-3-hydroxy-5-isoxazolyl)propionic acid (Cl-HIBO).  |  Bjerrum, EJ., et al. 2003. J Med Chem. 46: 2246-9. PMID: 12747796
  2. 3-hydroxypyridazine 1-oxides as carboxylate bioisosteres: a new series of subtype-selective AMPA receptor agonists.  |  Greenwood, JR., et al. 2006. Neuropharmacology. 51: 52-9. PMID: 16631211
  3. A tetrazolyl-substituted subtype-selective AMPA receptor agonist.  |  Vogensen, SB., et al. 2007. J Med Chem. 50: 2408-14. PMID: 17455929
  4. Structure of the S1S2 glutamate binding domain of GLuR3.  |  Ahmed, AH., et al. 2009. Proteins. 75: 628-37. PMID: 19003990
  5. Biostructural and pharmacological studies of bicyclic analogues of the 3-isoxazolol glutamate receptor agonist ibotenic acid.  |  Frydenvang, K., et al. 2010. J Med Chem. 53: 8354-61. PMID: 21067182
  6. A new phenylalanine derivative acts as an antagonist at the AMPA receptor GluA2 and introduces partial domain closure: synthesis, resolution, pharmacology, and crystal structure.  |  Szymańska, E., et al. 2011. J Med Chem. 54: 7289-98. PMID: 21923187
  7. Ligand-Directed Chemistry of AMPA Receptors Confers Live-Cell Fluorescent Biosensors.  |  Kiyonaka, S., et al. 2018. ACS Chem Biol. 13: 1880-1889. PMID: 29437380
  8. Inhibition of AMPA (α-Amino-3-Hydroxy-5-Methyl-4-Isoxazole Propionate) Receptor Reduces Acute Blood-Brain Barrier Disruption After Subarachnoid Hemorrhage in Mice.  |  Kawakita, F., et al. 2022. Transl Stroke Res. 13: 326-337. PMID: 34342874
  9. Anti-Apoptotic Effects of AMPA Receptor Antagonist Perampanel in Early Brain Injury After Subarachnoid Hemorrhage in Mice.  |  Kawakita, F., et al. 2023. Transl Stroke Res.. PMID: 36757633

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Cl-HIBO, 10 mg

sc-205934
10 mg
$229.00
US: Only available in the US

Cl-HIBO, 50 mg

sc-205934A
50 mg
$970.00
US: Only available in the US