HomeProducts

Dimethylthiotoluenediamine

CAS Number
106264-79-3
EC Number
403-240-8
Chemical Formula
C9H14N2S2
Molecular Weight
214.4 g/mol

Description

Dimethylthiotoluenediamine , commercially known as DMTDA, is an aromatic diamine curative used primarily in polyurethane and polyurea elastomer systems. It functions as a chain extender and crosslinker, controlling the mechanical properties and cure profile of finished elastomeric components. In cast polyurethane elastomers, DMTDA reacts with isocyanate-terminated prepolymers to produce parts requiring high load-bearing capacity and abrasion resistance. These applications include industrial wheels, rollers, and mining screens. Polyurea coating systems for automotive underbody protection, pipeline linings, and industrial flooring rely on this chemical to achieve controlled gel times and improved flexibility. It is a critical component for durable surface protection. In aerospace and defense applications, it is used in structural adhesives and composite matrix systems where precise cure kinetics are critical to part performance. This ensures the integrity of high-stress components. Lubricant additive formulations also incorporate CAS 106264-79-3 as an antioxidant and metal deactivator component in gear oils and hydraulic fluids. This versatility makes it valuable across multiple industrial sectors. DMTDA is supplied as a liquid at ambient temperature, with a characteristic amber to brown color. Standard commercial grades meet technical and industrial specifications, with purity typically reported at 95% or higher. The product is available in drums and IBC totes, with bulk quantities accessible through established chemical distributors. Proper handling and storage are required to maintain the chemical stability and performance of the material. Contact us for supply of Dimethylthiotoluenediamine Request Quote

Other Names (Synonyms)

3,5-Dimethylthio-2,4-toluenediamine | 2,4-Diamino-3,5-dimethylthiotoluene | 1,3-Benzenediamine, 2(or 4)-methyl-4,6(or 2,6)-bis(methylthio)- | RefChem:412821 | Ethacure 300 | 3,5-dimethylthio-2,6-diaminotoluene | 2(or 4)-Methyl-4,6(or 2,6)-bis(methylthio)-1,3-benzenediamine | Bis(methylthio)toluenediamine | DMTDA

Key Technical Features

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

Physical Properties

Boiling Point200°C (1.68 mmHg)
Density1.206
Water Solubility162mg/L at 20℃
Vapor Pressure10Pa at 25℃
Log P2.5 at 20℃

Safety & Handling

Warning
GHS07· IrritantGHS09· Environment

Hazard Statements

H302Harmful if swallowed
H317May cause an allergic skin reaction
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H411Toxic to aquatic life with long lasting effects

Precautionary Statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P272Contaminated work clothing should not be allowed out of the workplace.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P321Specific treatment (see … on this label).
P330Rinse mouth.
P391Collect spillage.
P501Dispose of contents/container in accordance with local regulations.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P317Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.