Date published: 2026-4-4

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CyPPA (CAS 73029-73-9)

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Alternate Names:
N-Cyclohexyl-2-(3,5-dimethyl-1H-pyrazol-1-yl)-6-methylpyrimidin-4-amine
Application:
CyPPA is an activator of small conductance Ca2+ activated K+ channels
CAS Number:
73029-73-9
Molecular Weight:
285.39
Molecular Formula:
C16H23N5
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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CyPPA is an activator of small conductance Ca2+-activated K+ channels. Selective for SK2 and SK3 channels, no selectivity for SK1 and IK channels.


CyPPA (CAS 73029-73-9) References

  1. Selective positive modulation of the SK3 and SK2 subtypes of small conductance Ca2+-activated K+ channels.  |  Hougaard, C., et al. 2007. Br J Pharmacol. 151: 655-65. PMID: 17486140
  2. Openers of small conductance calcium-activated potassium channels selectively enhance NO-mediated bradykinin vasodilatation in porcine retinal arterioles.  |  Dalsgaard, T., et al. 2010. Br J Pharmacol. 160: 1496-508. PMID: 20590639
  3. CyPPA, a positive modulator of small-conductance Ca(2+)-activated K(+) channels, inhibits phasic uterine contractions and delays preterm birth in mice.  |  Skarra, DV., et al. 2011. Am J Physiol Cell Physiol. 301: C1027-35. PMID: 21795518
  4. CyPPA, a Positive SK3/SK2 Modulator, Reduces Activity of Dopaminergic Neurons, Inhibits Dopamine Release, and Counteracts Hyperdopaminergic Behaviors Induced by Methylphenidate.  |  Herrik, KF., et al. 2012. Front Pharmacol. 3: 11. PMID: 22347859
  5. Activation of KCNN3/SK3/K(Ca)2.3 channels attenuates enhanced calcium influx and inflammatory cytokine production in activated microglia.  |  Dolga, AM., et al. 2012. Glia. 60: 2050-64. PMID: 23002008
  6. Concomitant SK current activation and sodium current inhibition cause J wave syndrome.  |  Chen, M., et al. 2018. JCI Insight. 3: PMID: 30429367
  7. The ion channel activator CyPPA inhibits melanogenesis via the GSK3β/β-catenin pathway.  |  Noh, TK., et al. 2019. Chem Biol Interact. 300: 1-7. PMID: 30597128
  8. Diadenosine tetraphosphate activates P2Y1 receptors that cause smooth muscle relaxation in the mouse colon.  |  Paquola, A., et al. 2019. Eur J Pharmacol. 855: 160-166. PMID: 31063775
  9. Subtype-selective positive modulation of KCa 2 channels depends on the HA/HB helices.  |  Nam, YW., et al. 2022. Br J Pharmacol. 179: 460-472. PMID: 34458981
  10. Augmented KCa2.3 Channel Feedback Regulation of Oxytocin Stimulated Uterine Strips from Nonpregnant Mice.  |  Zak, M., et al. 2021. Int J Mol Sci. 22: PMID: 34948381
  11. Structure-Activity Relationship Study of Subtype-Selective Positive Modulators of KCa2 Channels.  |  El-Sayed, NS., et al. 2022. J Med Chem. 65: 303-322. PMID: 34962403
  12. Electrophysiological Studies Support Utility of Positive Modulators of SK Channels for the Treatment of Spinocerebellar Ataxia Type 2.  |  Egorova, PA. and Bezprozvanny, IB. 2022. Cerebellum. 21: 742-749. PMID: 34978024
  13. SK-Channel Activation Alters Peripheral Metabolic Pathways in Mice, but Not Lipopolysaccharide-Induced Fever or Inflammation.  |  Bredehöft, J., et al. 2022. J Inflamm Res. 15: 509-531. PMID: 35115803

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

CyPPA, 10 mg

sc-205281
10 mg
$145.00

CyPPA, 50 mg

sc-205281A
50 mg
$645.00