Amines REACH

3-methoxypropylamine

CAS Number
5332-73-0
EC Number
226-241-3

What is 3-methoxypropylamine?

3-Methoxypropylamine (CAS 5332-73-0), also known by the abbreviation MOPA, is a primary aliphatic amine used as a reactive intermediate and curing agent in specialty chemical manufacturing.

Where is 3-methoxypropylamine used?

  • Pharmaceuticals and agrochemicals: building block for synthesizing APIs and agrochemical compounds
  • Epoxy coating and resin systems: curing agent
  • Polymer production: chain modifier or reactive diluent to tune mechanical properties in specialty resin systems
  • Personal care: pH buffer and stabilizer in rinse-off and leave-on products
  • It is particularly useful where a primary amine with an ether spacer is required for molecular architecture.

Commercial specifications

  • Purity typically 99% or higher, confirmed by GC analysis
  • Certificates of Analysis covering purity, water content, and amine value
  • Clear liquid in standard drum and IBC quantities, with bulk tanker options

Other Names (Synonyms)

1-Amino-3-methoxypropane|1-Propanamine, 3-methoxy-|Propylamine, 3-methoxy-|Propanolamine methyl ether|gamma-Methoxypropylamine|3MOPA cpd|VT819VO82Z|3-Methoxy-1-propanamine

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What are the physical properties of 3-methoxypropylamine?

Melting Point -65 °C
Boiling Point 90-125 °C
Density 0.874 g/cm³
Flash Point 73 °F
Appearance CLEAR COLOURLESS TO FAINTLY COLORED LIQUID
Color Clear colorless to faintly colored
Form Liquid
Water Solubility miscible
Vapor Pressure 20 mm Hg ( 30 °C)
Refractive Index n 20/D 1.417(lit.)
pH 11.5 (100g/l, H2O, 20℃)
Log P -0.5 at 25℃

How is 3-methoxypropylamine classified and handled safely? Learn More

Danger
GHS02· Flammable GHS05· Corrosive GHS07· Irritant

Hazard Statements

H226 Flammable liquid and vapor
H302 Harmful if swallowed
H314 Causes severe skin burns and eye damage
H317 May cause an allergic skin reaction
H318 Causes serious eye damage
H412 Harmful to aquatic life with long lasting effects

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.

Which trade and regulatory codes apply to 3-methoxypropylamine?

HS Code 29221980
UN Number 2734
ADR Class 8
Packing Group II
Storage Class 3 - Flammable liquids
WGK (Germany) 1
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