Date published: 2026-5-17

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TPMPA (CAS 182485-36-5)

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Alternate Names:
(1,2,5,6-Tetrahydropyridin-4-yl)methylphosphinic acid
Application:
TPMPA is TPMPA is a competitive, selective GABAC antagonist
CAS Number:
182485-36-5
Purity:
≥97%
Molecular Weight:
161.14
Molecular Formula:
C6H12NO2P
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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TPMPA is a competitive, selective GABAC antagonist with minimal effects on GABAA and GABAB receptors (Kb values are 2.1 muM (antagonist), 320 muM (antagonist) and EC50 ~ 500 muM (weak agonist) respectively). Shows 8-fold selectivity for human recombinant rho 1 receptors. TPMPA, a synthetic molecule, has recently captured the attention of the scientific community owing to its potential applications across diverse research domains. The compound, also known as 4-Methyl-2-Phenyl-2-Propanol, shares a structural resemblance with the neurotransmitter dopamine and belongs to the aniline derivative class. Its significance lies in its capacity to engage with dopamine receptors and influence the brain′s response to dopamine.


TPMPA (CAS 182485-36-5) References

  1. Medicinal chemistry and molecular pharmacology of GABA(C) receptors.  |  Johnston, GA. 2002. Curr Top Med Chem. 2: 903-13. PMID: 12171579
  2. GABA(C) receptors as drug targets.  |  Johnston, GA., et al. 2003. Curr Drug Targets CNS Neurol Disord. 2: 260-8. PMID: 12871036
  3. Developmental changes of GABA synaptic transient in cerebellar granule cells.  |  Barberis, A., et al. 2005. Mol Pharmacol. 67: 1221-8. PMID: 15635041
  4. Neurochemicals for the investigation of GABA(C) receptors.  |  Johnston, GA., et al. 2010. Neurochem Res. 35: 1970-7. PMID: 20963487
  5. Potentiating action of propofol at GABAA receptors of retinal bipolar cells.  |  Yue, L., et al. 2011. Invest Ophthalmol Vis Sci. 52: 2497-509. PMID: 21071744
  6. 2-Aminoethyl methylphosphonate, a potent and rapidly acting antagonist of GABA(A)-ρ1 receptors.  |  Xie, A., et al. 2011. Mol Pharmacol. 80: 965-78. PMID: 21810922
  7. Blocking GABA(C) receptors increases light responsiveness of retinal ganglion cells in a rat model of retinitis pigmentosa.  |  Jensen, RJ. 2012. Exp Eye Res. 105: 21-6. PMID: 23085337
  8. Quantum dot conjugates of GABA and muscimol: binding to α1β2γ2 and ρ1 GABA(A) receptors.  |  Gussin, HA., et al. 2013. ACS Chem Neurosci. 4: 435-43. PMID: 23509979
  9. Inhibition of form-deprivation myopia by a GABAAOr receptor antagonist, (1,2,5,6-tetrahydropyridin-4-yl) methylphosphinic acid (TPMPA), in guinea pigs.  |  Cheng, ZY., et al. 2014. Graefes Arch Clin Exp Ophthalmol. 252: 1939-46. PMID: 25120102
  10. In vivo electroretinographic studies of the role of GABAC receptors in retinal signal processing.  |  Wang, J., et al. 2015. Exp Eye Res. 139: 48-63. PMID: 26164072
  11. Are presynaptic GABA-Cρ2 receptors involved in anti-nociception?  |  Tadavarty, R., et al. 2015. Neurosci Lett. 606: 145-50. PMID: 26327143
  12. GABAρ selective antagonist TPMPA partially inhibits GABA-mediated currents recorded from neurones and astrocytes in mouse striatum.  |  Reyes-Haro, D., et al. 2017. Neuropharmacology. 113: 407-415. PMID: 27793773
  13. Effect of TPMPA (GABAC receptor antagonist) on neuronal response properties in rat barrel cortex.  |  Mohammadi, E., et al. 2017. Somatosens Mot Res. 34: 108-115. PMID: 28460564

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

TPMPA, 10 mg

sc-204352
10 mg
$307.00

TPMPA, 50 mg

sc-204352A
50 mg
$864.00