N-methylmorpholine
N-Methylmorpholine is an organic compound with the molecular formula C5H11NO. It is a colorless liquid with an ammonia odor and is sensitive to air; Can be miscible with water, ethanol, benzene, and ether; Flammable, corrosive, slightly toxic, and has an irritating odor. Inhalation of vapor can cause irritation to the skin and mucous membranes. LD50 1970mg/kg. The maximum allowable concentration in the air is 5mg/m3