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PD-85639

Cat. No. M8121

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PD-85639 Structure

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Biological Activity

PD-85639 (PD85,639) is a voltage-gated sodium (Na+) channel blocker (75% in 10 min & >95% in 25 min blockage of Na+ current by 25 μM PD85,639; whole-cell patch clamp using primary rat brain neurons) that is shown to target rat brain Nav1.2 with simultaneous high- and low-affinity modes of binding (EC50 = 56 nM/40% & 20 μM/60% at pH 9.0, 5 nM/28% & 3 μM/72% at pH 7.4, against 2 nM [3H]-PD85,639 for binding rat brain synaptosomes; EC50 = 17 nM/39% & 10 μM/61% using at pH 9.0 using rat brain synaptosome membranes) and a fast kinetic (t1/2 = 1.2 at 4°C, <0.5 min at 25°C), competitive against the local anesthetic Na+ channel blockers tetracaine, bupivacaine, and mepivacaine, as well as Na+ channel activators veratridine and batrachotoxin (K1 = 0.26 μM against 5 nM [3H]-BTX for binding rat neocrotical membranes).

Chemical Information
Molecular Weight 364.52
Formula C24H32N2O
CAS Number 149838-21-1
Solubility (25°C) DMSO: 2 mg/mL (warmed)
Storage Powder          -20°C   3 years ;  4°C   2 years
In solvent       -80°C   6 months ;  -20°C   1 month
References

[1] T P Obrenovitch. Sodium and potassium channel modulators: their role in neuroprotection

[2] I Roufos, et al. A structure-activity relationship study of novel phenylacetamides which are sodium channel blockers

[3] W Thomsen, et al. Specific binding of the novel Na+ channel blocker PD85,639 to the alpha subunit of rat brain Na+ channels

[4] D S Ragsdale, et al. Inhibition of Na+ channels by the novel blocker PD85,639

[5] I Roufos, et al. Synthesis and pharmacological evaluation of phenylacetamides as sodium-channel blockers

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Keywords: PD-85639 supplier, inhibitors, activators

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