QX-314 bromide is a membrane-impermeable, permanently charged sodium channel blocker provided as a ready-to-use 10 mM solution in DMSO or as a solid for reconstitution. It is commonly used in electrophysiology and neurophysiology experiments to selectively block intracellular voltage-gated sodium channels during recordings and manipulations.
- Membrane-impermeable quaternary lidocaine derivative.
- Available as 10 mM solution in DMSO or solid for reconstitution.
- Used to block intracellular voltage-gated sodium channels in electrophysiology.
- CAS number 24003-58-5 for unambiguous identification.
- Supplied with reported purity suitable for research applications.