Date published: 2026-4-12

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STO-609 acetate salt (CAS 1173022-21-3)

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Alternate Names:
7-Oxo-7H-benzimidazo[2,1-a]benz[de]isoquinoline-3-carboxylic acid, acetate salt
Application:
STO-609 acetate salt is a selective CaMKK inhibitor
CAS Number:
1173022-21-3
Purity:
≥98%
Molecular Weight:
374.35
Molecular Formula:
C19H10N2O3•C2H4O2
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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STO-609 is a naphthoyl fused benzimidazole cell-permeable compound. It is known to be a very potent and selective ATP-competitive CaMKK inhibitor. STO-609 may act to bind to the CaMKK catalytic domain, thus inhibiting autophosphorylation. STO-609 has not been found to significantly affect the activities of MLCK, CaMKII, CaMKI, CaMKIV, PKC, PKA, or p42 MAP kinase. It has been observed to inhibit AMP-activated protein kinase phosphorylation. STO-609 is an inhibitor of CaMKK alpha and CaMKK beta and an activator of aryl hydrocarbon receptor.


STO-609 acetate salt (CAS 1173022-21-3) References

  1. STO-609, a specific inhibitor of the Ca(2+)/calmodulin-dependent protein kinase kinase.  |  Tokumitsu, H., et al. 2002. J Biol Chem. 277: 15813-8. PMID: 11867640
  2. A single amino acid difference between alpha and beta Ca2+/calmodulin-dependent protein kinase kinase dictates sensitivity to the specific inhibitor, STO-609.  |  Tokumitsu, H., et al. 2003. J Biol Chem. 278: 10908-13. PMID: 12540834
  3. Agonist-modulated regulation of AMP-activated protein kinase (AMPK) in endothelial cells. Evidence for an AMPK -> Rac1 -> Akt -> endothelial nitric-oxide synthase pathway.  |  Levine, YC., et al. 2007. J Biol Chem. 282: 20351-64. PMID: 17519230
  4. Chemerin reverses neurological impairments and ameliorates neuronal apoptosis through ChemR23/CAMKK2/AMPK pathway in neonatal hypoxic-ischemic encephalopathy.  |  Zhang, Y., et al. 2019. Cell Death Dis. 10: 97. PMID: 30718467

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

STO-609 acetate salt, 5 mg

sc-202820
5 mg
$103.00