CHIR99021 is the most selective inhibitor of glycogen synthase kinase 3β (GSK3β, IC50 7nM) reported so far and it does not inhibit cyclin-dependent kinases (CDKs).

CHIR99021 has been shown in long term expansion of murine embryonic stem cells in conjunction with MEK/MAPK inhibitor PD184352 and fibroblast growth factor receptor (FGFR) inhibitor SU5402.

Product Citation

CHIR99021 is the most selective inhibitor of glycogen synthase kinase 3β (GSK3β, IC50 7nM) reported so far and it does not inhibit cyclin-dependent kinases (CDKs).

CHIR99021 has been shown in long term expansion of murine embryonic stem cells in conjunction with MEK/MAPK inhibitor PD184352 and fibroblast growth factor receptor (FGFR) inhibitor SU5402.

Product Citation