| Cat. No. | Product Name | Information | 
            
                
            	| PC-45849 | Selumetinib MEK inhibitor | Selumetinib (ARRY-142886, AZD-6244) highly potent and selective, ATP-uncompetitive inhibitor of MEK1/2 with IC50/Ki of 14.1 nM/22.6 nM for MEK1. | 
            
                
            	| PC-25083 | Polfurmetinib MEK inhibitor | Polfurmetinib (Compound II) is a potent, selective mitogen activated protein kinase (MEK) inhibitor, displays an IC50 of 8 nM in human malignant melanoma A375 cells, inhibits ERK1/2 (Thr202/Tyr204) phosphorylation with IC50 of 2 nM. | 
            
                
            	| PC-25048 | Envometinib MEK inhibitor | Envometinib (Compound 274) is a potent, selective dual MEK1/2 inhibitor, inhibits both pERK and pMEK in RAS mutant and NF-I loss of function (LoF) tumor models. | 
            
                
            	| PC-24941 | MKK4 inhibitor 39 MKK4 inhibitor | MKK4 inhibitor 39 is a potent, selective inhibitor of MKK (MEK4 or MAP2K4) with IC50 of 78 nM, 37-fold selective over RSK4 and high kinome selectivity. | 
            
                
            	| PC-24109 | Atebimetinib MEK inhibitor | Atebimetinib is a potent, selective MEK tyrosine kinase inhibitor with antineoplastic activity. | 
            
                
            	| PC-23993 | Sinensetin MKK6 inhibitor | Sinensetin is a methylated flavonoid found in fruits that has strong anti-vascular and anti-inflammatory properties, sinensetin is a specific inhibitor of MKK6 with KD of 62 uM. | 
            
                
            	| PC-22721 | Vacquinol-1 dihydrochloride MKK4 activator | Vacquinol-1 (NSC 13316) dihydrochloride is a specific MKK4 (MAP2K4, MEK4) activator that induces vacuolization, induces ATP depletion in glioblastoma cells (IC50 = 3.14 uM) without affecting fibroblasts, embryonic stem cells, or osteosarcoma cells. | 
            
                
            	| PC-43379 | Cobimetinib racemate | Cobimetinib racemate is the racemate form of Cobimetinib (GDC-0973, XL518), which is a potent, highly selective inhibitor of MEK1/2.. | 
            
                
            	| PC-42869 | BIX02188 | BIX02188 is a potent, selective inhibitor of MEK5 catalytic activity with IC50 of 4.3 nM, wekaly inhibits ERK5 catalytic activity (IC50=810 nM) and does not inhibits closely related kinases MEK1, MEK2, ERK2, and JNK2. | 
            
                
            	| PC-63100 | WX-554 | WX-554 is an oral, small molecule allosteric inhibitor targeting mitogen-activated protein kinase kinase (MEK1 and MEK2) with an estimated IC50 of 4.7 and 10.7 nM, respectively. | 
            
                
            	| PC-61420 | Etacrynic acid | A loop diuretic used to treat high blood pressure and the swelling, a novel ligand and inhibitor of MAP2K6 kinase that inhibits MAP2K6 in part through alkylation of a nonconserved cysteine residue. | 
            
                
            	| PC-42462 | Refametinib R enantiomer | The R enantiomer of Refametinib, a potent, non–ATP-competitive, highly selective, allosteric inhibitor of MEK1/2 with IC50 of 19/47 nM respectively.. |