MFH290 (MFH-290) is a potent, highly selective, covalent inhibitor of CDK12/13 with IC50 of 25/49 nM.MFH290 forms a covalent bond with Cys-1039 of CDK12, and CDK12-dependent as mutation of Cys-1039 rendered the kinase refractory to MFH290.MFH290 exhibits excellent kinome selectivity, inhibits the phosphorylation of serine-2 in the C-terminal domain (CTD) of RNA-polymerase II (Pol II), and reduces the expression of key DNA damage repair genes.MFH290 restored Pol II CTD phosphorylation and DNA damage repair gene expression AND augments the antiproliferative effect of the PARP inhibitor olaparib.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.