A membrane-impermeant lidocaine derivative that when combined with capsaicin selectively blocks sodium channels on nociceptive neurons via the TRPV1 channel; decreases the pain response without imparting numbness or paralysis associated with other local anesthetics

QX-314 (bromide) – 25 mg

Brand:
Cayman
CAS:
24003-58-5
Storage:
-20
UN-No:
Non-Hazardous - /

QX-314 is a membrane-impermeant lidocaine derivative that selectively blocks sodium channels on nociceptive neurons when delivered intracellularly via the TRPV1 channel, but is reportedly ineffective with extracellular application.{15625} When supplied in combination with 1 µM capsaicin, a TRPV1 receptor agonist, 5 mM QX-314 blocks 98% of sodium current in voltage-clamped nociceptive DRG neurons.{15625} QX-314 elicits a long-lasting decrease in the response to painful mechanical and thermal stimuli without imparting the motor deficits (e.g., numbness, paralysis) associated with many conventional local anesthetics.{15625} At concentrations ranging from 10-70 mM, peripheral application of QX-314 dose-dependently produces robust local anesthesia with slow onset in the guinea pig intradermal wheal assay, the murine tail-flick test, and the murine sciatic nerve blockade model.{16613} However, injection of 0.5-30 mM QX-314 in the lumbar intrathecal space produces neurotoxicity and death in mice.{16615}  

 

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SKU: 10011032 - 25 mg Category:

Description

A membrane-impermeant lidocaine derivative that when combined with capsaicin selectively blocks sodium channels on nociceptive neurons via the TRPV1 channel; decreases the pain response without imparting numbness or paralysis associated with other local anesthetics

Formal name: 2-[(2,6-dimethylphenyl)amino]-N,N,N-triethyl-2-oxo-ethanaminium bromide

Synonyms: 

Molecular weight: 343.3

CAS: 24003-58-5

Purity: ≥98%

Formulation: A crystalline solid

Product Type|Biochemicals|Ion Channel Modulation|Blockers||Research Area|Neuroscience|Pain Research

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