N-Methylmorpholine is the organic compound with the formula O(CH2CH2)2NCH3. It is a colorless liquid. It is a cyclic tertiary amine. It is used as a base catalyst for generation of polyurethanes. It is produced by the reaction of methylamine and diethylene glycol as well as by the hydrogenolysis of N-formylmorpholine. it is as the precursor to N-methylmorpholine N-oxide, a commercially important solvent.
3D model (JSmol)
CompTox Dashboard (EPA)
|Molar mass||101.149 g·mol−1|
|Melting point||−66 °C (−87 °F; 207 K)|
|Boiling point||115 to 116 °C (239 to 241 °F; 388 to 389 K)|
|Acidity (pKa)||7.38 (for the conjugate acid) (H2O)|
|Flammable (F), Corrosive (C)|
|R-phrases (outdated)||R11 R20/21/22 R34|
|S-phrases (outdated)||S16 S26 S36/37/39 S45|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).