ROCK-IN-1 is a potent inhibitor of ROCK , with an IC 50 of 1.2 nM for ROCK2 . In Vitro ROCK-IN-1 shows potent cellular efficacy, with an EC 50 of 200 nM. MCE has not independently confirmed the accuracy of these methods. They are for reference only. Form:Solid IC50& Target:ROCK2 1.2 nM (IC 50 )