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Submit ReviewPicrotoxin is a GABAA receptor antagonist; potent CNS stimulant.
M. Wt | 602.59 |
Formula | C30H34O13 |
Storage | Store at RT |
Purity | ≥97% (HPLC) |
CAS Number | 124-87-8 |
PubChem ID | 6473767 |
InChI Key | VJKUPQSHOVKBCO-ZYMHLGHZSA-N |
Smiles | [H][C@@]12OC([C@@](C1(C(C)=C)[H])([C@@]3(C[C@H]4O[C@]45C(O[C@]2([C@]35C)[H])=O)O)[H])=O.[H][C@@]67OC([C@@](C6(C(C)(O)C)[H])([C@@]8(C[C@H]9O[C@]9%10C(O[C@]7([C@]8%10C)[H])=O)O)[H])=O |
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
Tocris products are intended for laboratory research use only, unless stated otherwise.
Solvent | Max Conc. mg/mL | Max Conc. mM | |
---|---|---|---|
Solubility | |||
ethanol | 30.13 | 50 with gentle warming | |
DMSO | 12.05 | 20 |
The following data is based on the product molecular weight 602.59. Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.
Concentration / Solvent Volume / Mass | 1 mg | 5 mg | 10 mg |
---|---|---|---|
0.5 mM | 3.32 mL | 16.6 mL | 33.19 mL |
2.5 mM | 0.66 mL | 3.32 mL | 6.64 mL |
5 mM | 0.33 mL | 1.66 mL | 3.32 mL |
25 mM | 0.07 mL | 0.33 mL | 0.66 mL |
References are publications that support the biological activity of the product.
Dillon et al (1995) Enhancement by GABA of the association rate of picrotoxin and tert-butylbicyclophosphorothionate to the rat cloned α1β2γ2 GABAA receptor subtype. Br.J.Pharmacol. 115 539 PMID: 7582470
Ette et al (1999) Picrotoxin blockade of inverterbrate glutamate-gated chloride channels: subunit dependence and evidence for binding within the pore. J.Neurochem. 72 318 PMID: 9886084
Newland and Cull-Candy (1992) On the mechanism of action of picrotoxin on GABA receptor channels in dissociated sympathetic neurones of the rat. J.Physiol. 447 191 PMID: 1317428
Merck Index 12 7570
If you know of a relevant reference for Picrotoxin, please let us know.
Keywords: Picrotoxin, Picrotoxin supplier, GABAA, receptor, antagonists, Receptors, picrotin, 1128, Tocris Bioscience
Citations are publications that use Tocris products. Selected citations for Picrotoxin include:
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Picrotoxin stock was prepared in DMSO and diluted with ACSF to 25 micromolar concentration. Bath application of Picrotoxin blocked evoked inhibitory postsynaptic currents in an ex-vivo slice preparation.
20 microM Picrotoxin concentration was used to block GABA-A receptor openings in nucleated cell membrane patches. Full block was achieved in ~30 seconds after application. Picture: GABA-A receptor openings under control conditions (top three traces) and after application of Picrotoxin (bottom trace).
Used to block GABA activity in 16 day old cortical neurons. Effective at 10 micromolar concentration. Incubated for 30 minutes before measuring bursts.
Used for electrophysiology to block GABA currents. Works as expected
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