Amines REACH

N-methylmorpholine

CAS Number
109-02-4
EC Number
203-640-0
Chemical Formula
C5H11NO
Molecular Weight
101.15 g/mol
Abbreviation
NMM

Description

N-methylmorpholine (CAS 109-02-4), commonly abbreviated as NMM, is a tertiary amine solvent and catalyst used across pharmaceutical synthesis, polymer processing, and specialty coatings. It functions primarily as a base catalyst and reaction solvent where controlled basicity and miscibility with water and organic media are required for process efficiency in industrial settings.

In pharmaceutical manufacturing, NMM acts as a non-nucleophilic base in peptide coupling reactions, enabling cleaner synthesis of active pharmaceutical ingredients at scale for global distribution. Polyurethane foam and elastomer producers use it as a catalyst to control gel and blow reaction timing, directly affecting final product density and mechanical performance in various applications.

In coatings and adhesive formulations, it promotes crosslinking and improves adhesion to difficult substrates, particularly in industrial and protective coating systems used in harsh environments. Printing ink manufacturers incorporate NMM as a co-solvent to improve pigment dispersion and resin compatibility in high-performance ink systems designed for modern commercial printing needs.

N-methylmorpholine is supplied as a liquid in standard bulk quantities including drums and IBC containers, with smaller packaging available for laboratory and specialty use by researchers. Technical grade is the most common commercial specification, with high-purity grades available to meet pharmaceutical manufacturing requirements and specific quality standards for regulated use.

Other Names (Synonyms)

4-Methylmorpholine|Morpholine, 4-methyl-|1-Methylmorpholine|11P91ANU5X|RefChem:99901|NMM

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

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Physical Properties

Melting Point −66 °C(lit.)
Boiling Point 115 °C
Density 0.91406 g/cm³ @ Temp: 25.00 °C
Flash Point 75 °F
Appearance clear liquid
Color Clear
Form Liquid
Water Solubility >500 g/L (20 ºC)
Vapor Pressure 18 mm Hg ( 20 °C)
Refractive Index n 20/D 1.435(lit.)
pH 10.6 (50g/l, H2O, 20℃)
Log P -0.32 at 25℃

Documentation

Safety & Handling Learn More

Danger
GHS02· Flammable GHS05· Corrosive GHS07· Irritant

Hazard Statements

H225 Highly Flammable liquid and vapor
H302 Harmful if swallowed
H312 Harmful in contact with skin
H314 Causes severe skin burns and eye damage
H318 Causes serious eye damage
H332 Harmful if inhaled

Precautionary Statements

P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233 Keep container tightly closed.
P240 Ground and bond container and receiving equipment.
P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment.

Trade & Regulatory

HS Code 29349990
UN Number 2535
ADR Class 3
Packing Group II
WGK (Germany) 1
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