Tris(acetylacetonato)(1,10-phenanthroline)europium(III) (CAS# 17568-09-1) is an organometallic complex with cytotoxic and antitumor properties against breast carcinoma cells. Via Fluorimetric analysis, tris(acetylacetonato)(1,10-phenanthroline)europium(III) has been determined to be able to bind to DNA.