Product Information
Chemical Name N,N-Dimethyl-p-toluidine (DMPT)
Synonyms N,N,4-Trimethylaniline, 4-Dimethylaminotoluene, Dimethyl-p-toluidineCAS Number 99-97-8
EINECS No. 202-805-4
Molecular Formula C₉H₁₃NMolecular Weight 135.21 g/mol
Grade Industrial Grade
Chemical Family Aromatic tertiary amineUN Number UN 2810
Hazard Class 6.1
Packing Group III
HS Code 29214300
Physical & Chemical Properties
Appearance Pale yellow to amber clear liquid
Density 0.934-0.940 g/mL @25 °C
Refractive Index n₂₀/D 1.544-1.548Boiling Point 209-213 °C
Melting Point −25 °C
Flash Point 78 °C (closed cup)Solubility Insoluble in water; miscible with ethanol, ether, chloroform
Stability Stable under normal conditions; incompatible with strong oxidizing agents
Quality Specification
| Test Item | Industrial Grade |
|---|---|
| Assay (GC) | ≥98.0 % |
| Water Content | ≤0.20 % |
| N,N‑Dimethylaniline | ≤0.30 % |
| N,N‑Dimethyl‑m‑toluidine | ≤1.50 % |
| High‑boiling impurities | ≤0.30 % |
| Color (APHA) | ≤200 |
Application & Use
Polymerization activator & accelerator for acrylate resin, epoxy resin and unsaturated polyester systems.
Activator component for dental cement and two-component adhesives.
Synthetic intermediate for dyes, photographic chemicals and fine-chemical synthesis.
Used in curing formulations for composite materials.
Packing, Delivery & Storage
Packaging options: 190 kg steel drum; or as per request.
Lead-time: 7-15 working days against deposit.
Storage condition: Keep container tightly closed. Store in cool, dry, well-ventilated warehouse. Keep away from heat source, sunlight and strong oxidizing agents.
Shelf-life: 24 months under original sealed storage.
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