Membrane impermeant verapamil derivative. Because of its inability to pass the hydrophobic cell membrane, D890 is ineffective when applied extracellularly but blocks Ca2+ channels on intracellular application.
Also available in simple stock solutions (ab146722) - add 1 ml of water to get an exact, ready-to-use concentration.
Store at Room Temperature. The product can be stored for up to 12 months.
Soluble in water to 100 mM
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.