溶于水。N-甲酰吗啉主要作为芳烃及丁烯抽提溶剂，亦是焦化苯加氢精制的萃取溶剂；也可用于天然气及天然气凝析油、汽油、合成气、烟道气的脱硫；也作有机合成反应的溶剂。 Treatment of 4-formylmorpholine with sulphur tetrafluoride in the presence of potassium fluoride gives 4-(trifluoromethyl)morpholine in excellent yields. 4-Formylmorpholine reacts with series of 2-alkyl-2-cyclohexen-1-ones in the presence of POCl3 to give the corresponding 3-alkyl-2-chloro-5,6-dihydrobenzaldehydes and allylic alcohols (by-product). 4-Formylmorpholine has been used in the preparation of: ? adenine hydrochloride labelled with 14C ? terphenyl dialdehyde