Amines REACH

N,N-dimethylaniline

CAS Number
121-69-7
EC Number
204-493-5
Chemical Formula
C8H11N
Molecular Weight
121.18 g/mol
Abbreviation
DMA

Description

N,N-Dimethylaniline (CAS 121-69-7), commonly abbreviated as DMA, is a tertiary aromatic amine used as a chemical intermediate and accelerator across dye manufacturing, polymer curing, and specialty synthesis. It functions primarily as a catalyst and reactive intermediate, enabling downstream production of dyes, agrochemicals, and cured resin systems. In the dye and pigment industry, DMA is a key intermediate.

It is used in the synthesis of triphenylmethane and azo dyes used in textile, paper, and leather coloring. Polymer formulators use it as a curing accelerator for unsaturated polyester and vinyl ester resins. In these applications, it activates peroxide initiators to control cure rate in composite and laminate production. Printing ink manufacturers rely on DMA-derived colorants to achieve specific hue profiles.

These profiles are essential for packaging inks. It also serves as a building block in agrochemical and pharmaceutical intermediate synthesis, where controlled alkylation chemistry is required for production. DMA is supplied as a liquid in bulk quantities, with drum and IBC packaging standard for industrial buyers. Technical grade is the most common commercial specification for these industrial applications.

Purity levels are typically at 99% or higher for synthesis applications. Buyers sourcing for regulated downstream uses should confirm supplier documentation for batch consistency and purity certification.

Other Names (Synonyms)

DMA

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 2.50 °C
Boiling Point 193.54 °C
Density 0.956 g/cm³ @ Temp: 20 °C
Flash Point 158 °F
Appearance liquid
Color Clear yellow
Form Liquid
Water Solubility 1 g/L (20 ºC)
Vapor Pressure 2 mm Hg ( 25 °C)
Refractive Index n 20/D 1.557(lit.)
pH 7.4 (1.2g/l, H2O, 20℃)
Log P 1.171 at 35℃

Documentation

Safety & Handling Learn More

Danger
GHS06· Toxic GHS08· Health Hazard GHS09· Environmental Hazard GHS07· Irritant GHS02· Flammable GHS05· Corrosive

Hazard Statements

H227 Combustible liquid
H252 Self-heating in large quantities; may catch fire
H301 Toxic if swallowed
H302 Harmful if swallowed

Precautionary Statements

P203 Obtain, consult and follow expert instructions for use.
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P235 Keep cool.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.

Trade & Regulatory

HS Code 29214200
UN Number 2253
ADR Class 6.1
Packing Group II
Storage Class 6.1A - Combustible acute toxic Cat. 1 and 2 very toxic hazardous materials
WGK (Germany) 3
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