Cat. No. 3620

Topiramate C12H21NO8S [97240-79-4]

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Alternative Name: Topamax

Chemical Name: 2,3:4,5-Bis-O-(1-methylethylidene)-β-D-fructopyranose sulfamate

Biological Activity

Anticonvulsant. Antagonizes GluR5 kainate receptors (IC50 = 0.46 μM), acts as a positive allosteric modulator of GABAA receptor-mediated currents, inhibits Nav channels (IC50 = 48.9 μM) and inhibits L-type Ca2+ channels. Also inhibits carbonic anhydrase (CA) (Ki values are 0.1 and 0.2 μM at rat CA II and CA IV respectively), which lowers intracellular neuronal pH.

Technical Data

Soluble to 100 mM in DMSO and to 100 mM in ethanol
>99 %
Store at +4°C

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
All Tocris products are intended for laboratory research use only.

Certificate of Analysis / Safety Data Sheet

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Safety Data Sheet: View Safety Data Sheet

Kaminiski et al (2004) Topiramate selectively protects against seizures induced by ATPA, a GluR5 kainate receptor agonist. Neuropharmacology 46 1097. PMID: 15111016.

Gryder and Rogawski (2003) Selective antagonism of GluR5 kainate-receptor-mediated synaptic currents by topiramate in rat basolateral amygdala neurons. J.Neurosci. 23 7069. PMID: 12904467.

Dodgson et al (2000) Topiramate as an inhibitor of carbonic anhydrase isoenzymes. Epilepsia 41 S35. PMID: 10768298.

Zona et al (1997) Topiramate attenuates voltage-gated sodium currents in rat cerebellar granule cells. Neurosci.Lett. 231 123. PMID: 9300637.

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Keywords: Topiramate, supplier, GluR5, antagonists, anticonvulsant, GABAA, receptor, positive, allosteric, modulators, Glutamate, Kainate, Receptors, iGluR, Ionotropic, Tocris Bioscience, Kainate Receptor Antagonist products

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