bs 181

BS-181 is a highly selective CDK7 inhibitor (IC50: 21 nM); >40-fold selective for CDK7 than CDK1 2 4 5 6 9.

BS-181 hydrochloride (BS-181 HCl) is a highly selective CDK7 inhibitor with IC50 of 21 nM. It is more than 40-fold selective for CDK7 than CDK1, 2, 4, 5, 6, or 9.

BS-181 dihydrochloride is a selective and potent inhibitor of CDK7 with an IC50 value of 21 nM. BS-181 dihydrochloride inhibits CDK2 (IC50: 880 nM), CDK5 (IC50: 3000 nM) and CDK9 (IC50: 4200 nM), but does not block CDK1, 4 and 6. BS-181 dihydrochloride inhibits the growth of a group of cancer cells (IC50: 11.5 μM-37.3 μM) and induces apoptosis.