4-Formylmorpholine has various applications, particularly in the fields of chemistry and pharmaceuticals:

1. **Chemical Synthesis**: It serves as an intermediate in the synthesis of various organic compounds, including pharmaceuticals and agrochemicals.

2. **Pharmaceutical Development**: It can be used to develop drugs with specific biological activities, particularly due to its ability to form derivatives that may have therapeutic effects.

3. **Research**: In laboratory settings, it is used in studies related to heterocyclic chemistry and can be a precursor for synthesizing more complex compounds.

4. **Potential Agrochemical Uses**: Some derivatives may exhibit activity against pests or diseases, making them candidates for developing new agrochemicals.