Ruthenium(2+),tris(1,10-phenanthroline-kN1,kN10)-, dichloride, monohydrate,(OC-6-11)- (9CI) is a coordination complex containing a ruthenium(II) ion coordinated to three 1,10-phenanthroline ligands and two chloride ions, with a hydrate molecule. This compound has been extensively studied and has diverse applications.