A-803467 is a potent and selective Nav1.8 sodium channel blocker. A-803467 blocks Nav1.8 in both half-maximal inactive and resting states with an IC50 of 8 nM and IC50 of 79 nM, respectively. A-803467 is >100-fold selective vs. human Na(v)1.2, Na(v)1.3, Na(v)1.5, and Na(v)1.7 (IC50 values >or=1 microM). Administration of A-803467 (10-30 mg/kg i.v.) reduced mechanically evoked (10-g von Frey hair) and spontaneous WDR neuronal activity in SNL rats. A-803467 also dose-dependently reduced mechanical allodynia in a variety of rat pain models. A-803467 is the first small-molecule blocker of sodium channels which showing both high potency and significant subtype-selectivity among the sodium channel family.
Species | Mouse | Rat | Rabbit | Guinea pig | Hamster | Dog |
Weight (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
Body Surface Area (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
Km factor | 3 | 6 | 12 | 8 | 5 | 20 |
Animal A (mg/kg) = Animal B (mg/kg) multiplied by | Animal B Km |
Animal A Km |
For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.
Molecular Weight | 357.79 |
Formula | C19H16ClNO4 |
CAS Number | 944261-79-4 |
Purity | >99% |
Solubility | DMSO 60 mg/mL |
Storage | at -20°C |
A selective Nav1.8 sodium channel blocker, A-803467 [5-(4-chlorophenyl-N-(3,5-dimethoxyphenyl)furan-2-carboxamide], attenuates spinal neuronal activity in neuropathic rats.
McGaraughty S, et al. J Pharmacol Exp Ther. 2008 Mar;324(3):1204-11. PMID: 18089840.
A-803467, a potent and selective Nav1.8 sodium channel blocker, attenuates neuropathic and inflammatory pain in the rat.
Jarvis MF, et al. Proc Natl Acad Sci U S A. 2007 May 15;104(20):8520-5. PMID: 17483457.
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