p-21d hydrochloride

P21d hydrochloride is a potent and selective breast tumor Ki nase (Brk) inhibitor (IC50 = 30 nM). Exhibits >650-fold selectively for Brk over Aurora B Ki nase and Lck. Downregulates SNAIL protein, restores E-cadherin expression and suppresses migration in breast cancer cells. Also activein vivoand orally bioavailable.

BRK inhibitor P21d hydrochloride is a highly potent inhibitor of breast tumor kinase (BRK PTK6), displaying an IC50 of 30 nM, and effectively suppresses p-SAM68 with an IC50 of 52 nM. This compound serves as a valuable tool for evaluating BRK inhibitors' efficacy in xenograft breast tumor models, enabling in vivo activity assessment.