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Amines REACH

n-methylmorpholine n-oxide

CAS Number
7529-22-8
EC Number
231-391-8
Chemical Formula
C5H11NO2
Molecular Weight
117.15 g/mol

Description

N-Methylmorpholine N-oxide (CAS 7529-22-8 ), commonly known as NMO, is a stable, recyclable oxidant used across chemical synthesis and industrial processing. It functions primarily as a co-oxidant in catalytic oxidation reactions. The compound also serves as a cellulose dissolution agent in fiber production. In textile and pulp manufacturing, NMO is the solvent system of choice for dissolving cellulose in the Lyocell process. This application enables the production of fibers such as Tencel. Synthetic chemists rely on NMO as the stoichiometric co-oxidant in Sharpless dihydroxylation and Ley oxidation protocols. In these processes, it regenerates osmium tetroxide or TPAP catalysts in situ. In biotechnology and life sciences, NMO supports selective oxidation steps in the synthesis of complex molecules. This includes the production of carbohydrates and pharmaceutical intermediates. Water treatment applications utilize NMO-based oxidation systems for degrading recalcitrant organic compounds. NMO is supplied as an aqueous solution, most commonly at 50% concentration, and as a monohydrate powder for applications requiring precise stoichiometry for chemical reactions. Technical and reagent grades are available to serve both industrial-scale fiber processing and laboratory synthesis demands. Packaging ranges from small quantities to bulk drum supply. These options support research use as well as continuous manufacturing operations. Our product meets rigorous industry requirements for purity and performance in diverse chemical environments. Contact us for supply of n-methylmorpholine n-oxide Request Quote

Other Names (Synonyms)

N-Methylmorpholine oxide | N-Methylmorpholine 4-oxide | 4-Methylmorpholine-4-oxide | NMO | 4-Methylmorpholine N-oxide | Morpholine, 4-methyl-, 4-oxide | Methyl morpholine oxide | 4-Methylmorpholine Oxide

Key Technical Features

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

Physical Properties

Melting Point120-160 °C
Boiling Point118-119°C
Density1,14 g/cm 3
Flash Point118-119°C
AppearanceClear colorless to yellow solution
ColorClear colorless to yellow
FormLiquid
Water SolubilitySoluble in water, methanol, ethanol, acetone, ethers and dimethylsulfoxide.
Vapor Pressure1.41hPa at 20℃
Refractive Indexn 20/D 1.43
pH9.00 ( in neat)
Log P-1.2 at 25℃

Safety & Handling

Danger
GHS02· FlammableGHS03· OxidizerGHS07· IrritantGHS08· Health Hazard

Hazard Statements

H228Flammable solid
H272May intensify fire; oxidizer
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H361Suspected of damaging fertility or the unborn child

Precautionary Statements

P203Obtain, consult and follow expert instructions for use.
P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P220Keep away from clothing and other combustible materials.
P240Ground and bond container and receiving equipment.
P241Use explosion-proof equipment.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P318IF exposed or concerned, get medical advice.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P378Use … for extinction.
P233Store in a well-ventilated place. Keep container tightly closed.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29349990
Storage Class4.1B - Flammable solid hazardous materials
WGK (Germany)1