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Pigments & Colorants

N,N-dimethylaniline

CAS: 121-69-7

Overview

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.

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Physical Properties

Melting Point2.50 °C
Boiling Point193.54 °C
Density0.956 g/cm³ @ Temp: 20 °C
Flash Point158 °F
Appearanceliquid
ColorClear yellow
FormLiquid
Water Solubility1 g/L (20 ºC)
Vapor Pressure2 mm Hg ( 25 °C)
Refractive Indexn 20/D 1.557(lit.)
pH7.4 (1.2g/l, H2O, 20℃)
Log P1.171 at 35℃

Safety & Handling

Danger GHS06 GHS08 GHS09 GHS07 GHS02 GHS05 Hazard Statements H227 Combustible liquid H252 Self-heating in large quantities; may catch fire H301 Toxic if swallowed H302 Harmful if swallowed H311 Toxic in contact with skin H312 Harmful in contact with skin H316 Causes mild skin irritation H317 May cause an allergic skin reaction H318 Causes serious eye damage H319 Causes serious eye irritation H330 Fatal if inhaled H331 Toxic if inhaled H332 Harmful if inhaled H336 May cause drowsiness or dizziness H351 Suspected of causing cancer H370 Causes damage to organs H372 Causes damage to organs through prolonged or repeated exposure H373 May causes damage to organs through prolonged or repeated exposure H400 Very toxic to aquatic life H401 Toxic to aquatic life H410 Very toxic to aquatic life with long lasting effects H411 Toxic to aquatic life with long lasting effects H301+H311+H331 Toxic if swallowed, in contact with skin or if inhaled 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. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P262 Do not get in eyes, on skin, or on clothing. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P272 Contaminated work clothing should not be allowed out of the workplace. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P284 In case of inadequate ventilation wear respiratory protection. P316 Get emergency medical help immediately. P317 Get emergency medical help. P318 IF exposed or concerned, get medical advice. P319 Get medical advice/attention if you feel unwell. P320 Specific treatment is urgent (see … on this label). P321 Specific treatment (see … on this label). P330 Rinse mouth. P391 Collect spillage. P403 Store in a well-ventilated place. P405 Store locked up. P407 Maintain air gap between stacks/pallets. P410 Protect from sunlight. P413 Store bulk masses greater than … kg/… lbs at temperatures not exceeding … °C/…°F. P420 Store away from other materials. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P316 Get emergency medical help immediately. P301+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P308+P316 Get emergency medical help immediately. P332+P317 Get emergency medical help. P333+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P361+P364 Take off immediately all contaminated clothing and wash it before reuse. P362+P364 Take off contaminated clothing and wash it before reuse. P370+P378 Use … for extinction. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29214200
UN Number2253
ADR Class6.1
Packing GroupII
Storage Class6.1A - Combustible acute toxic Cat. 1 and 2 very toxic hazardous materials
WGK (Germany)3

Other Names

DMA

Related Products

Chemical Properties

CAS Number
121-69-7
EC Number
204-493-5
Mol. Weight
121.18
HS Code
29214200

Industries

Documentation