(S)-Verapamil hydrochloride is an inhibitor of leukotriene C4 (LTC4) and calcein transport by MRP1,and leads to the death of potentially resistant tumor cells.
NSC-609249 hydrochloride, an impurity of Verapamil, is a calcium channel blocker with potent orally active properties. It also functions as a first-generation P-glycoprotein (P-gp) inhibitor.
Dexverapamil is the R-enantiomer of the calcium channel blocker verapamil. Dexverapamil competitively inhibits the multidrug resistance efflux pump P-glycoprotein (MDR-1), thereby potentially increasing the effectiveness of a wide range of antineoplastic drugs which are inactivated by MDR-1 mechanisms.
Norverapamil D7 is a deuterium labeled Norverapamil . Norverapamil is a blocker of L-type calcium channel and an inhibitor of P-glycoprotein (P-gp) function .
Falipamil is a verapamil derivative and a calcium channel antagonist. Falipamil exerts antitachycardic effects by a direct action on the sinus node. Falipamil decreases HR at exercise in normal subjects and may exert antianginal effects in patients with m
LU 49888 is a photoaffinity analog of verapamil that has been used to identify specific binding sites for phenylalkylamines of calcium channels present in rabbit skeletal muscle microsomes.
BODIPY-aminoacetaldehyde diethyl acetal (BAAA-DA) is a stable precursor to BODIPY-aminoacetaldehyde, a cell-permeable fluorescent substrate for aldehyde dehydrogenase (ALDH).1,2BODIPY-aminoacetaldehyde diethyl acetal is converted under acidic conditions to BODIPY-aminoacetaldehyde (BAAA).2BAAA is cell-permeant and is converted intracellularly by ALDH to BODIPY aminoacetate (BAA), which is retained by cells and can be used to identify cells with high ALDH activity.1BAA is a substrate for the efflux pump P-glycoprotein (P-gp) but co-application of BAAA with a P-gp inhibitor, such as verapamil , inhibits BAA efflux.2BAAA-DA has been used to isolate human hematopoietic progenitor cells, which have high ALDH activity, andviaflow cytometry to sort cancer stem cells that contain high levels of ALDH.1,3BAA used in cells can be excited at 488 nm and displays an emission maximum of 512 nm.4 1.Storms, R.W., Trujillo, A.P., Springer, J.B., et al.Isolation of primitive human hematopoietic progenitors on the basis of aldehyde dehydrogenase activityProceedings of the National Academy of Sciences of the United States of America96(16)9118-9123(1999) 2.Smith, C.A., Colvin, M., Storms, R.W., et al.BODIPY aminoacetaldehyde diethyl acetal08010501.81-15(2010) 3.Leng, Z., Yang, Z., Li, L., et al.A reliable method for the sorting and identification of ALDHhigh cancer stem cells by flow cytometryExp. Ther. Med.(2017) 4.Pomper, M.G., Wang, H., Minn, I., et al.Red fluorescent aldehyde dehydrogenase (ALDH) substrate(2015)