2-Piperazinyl-8-phenyl-4H-1-benzopyran-4-one Amber solid. A cell-permeable negative control for the PI 3-kinase inhibitor LY 294002 (Cat. No. 440202). Contains a single atom substitution in the morpholine ring compared to LY 294002. Does not inhibit PI 3-kinase even at a concentration of 100 µM. Purity: ≥98% by HPLC. CAS 154447-38-8. Ref.: Ding, J., et al. 1995. J. Biol. Chem. 270, 11684. Vlahos, C.J., et al. 1994. J. Biol. Chem. 269, 5241. | 
