Also available in 1 mL, 1 mg, 5 mg, 10 mg, 50 mg, 100 mg and bulk. Please contact Fisher for quotes. Indirubin-3'-monoxime (Indirubin-3'-oxime) is a potent inhibitor of GSK3beta (IC50 22 nM) and also inhibits CDKs ( (IC50s 100/180/250 nM for Cdk5/p35, Cdk1/cyclin B, Cdk2/cyclin E). Purity 99.65%