CK-666 is a cell-permeable inhibitor of actin-related protein Arp2/3 complex. It binds to the Arp2/3 complex, stabilizes the inactive state of the complex, blocking the movement of the Arp2 and Arp3 subunits into the activated filament-like (short pitch)

CK-869 is an Actin-Related Protein 2/3 (ARP2/3) complex inhibitor(IC50 of 7 μM),and is useful tools for the investigation of the Arp2/3 complex.

CK-636 (CK-0944636), an Arp2/3 complex inhibitor, can inhibit actin polymerization induced by the human (IC50: 4 μM), fission yeast (IC50: 24 μM) and bovine (IC50: 32 μM) Arp2/3 complex, respectively.

Benproperine phosphate (Pirexyl phosphate) is a cough suppressant.

Wiskostatin is a selective inhibitor of N-WASP, a ubiquitously expressed member of the Wiskott-Aldrich Syndrome protein (WASp) family that regulates actin polymerization.

CK548 is a novel actin-related protein (Arp)2/3 complex inhibitor.