Bis[2-(dimethylamino)ethyl]ether (DMAEE; CAS No 3033-62-3) is an industrial liquid chemical used principally as an amine catalyst. It was investigated for potential acute hazards. DMAEE is of moderate acute peroral toxicity with LD50 values in the rat of 1045 ml/kg and 1198 mg/kg in 2 separate tests