Amines
REACH
Diethyltoluenediamine
CAS Number
2095-02-5
EC Number
218-256-9
What is Diethyltoluenediamine?
Diethyltoluenediamine (CAS 2095-02-5), commonly known as DETDA, is an aromatic diamine used as a curing agent and chain extender in polyurethane and epoxy systems.
Where is Diethyltoluenediamine used?
- Polyurethane elastomers: chain extender in reaction injection molding (RIM) systems, determining hardness and flex fatigue resistance
- Epoxy systems: curative in structural adhesives, composite matrices and protective coatings requiring elevated heat and chemical resistance
- Polyurea spray coatings: incorporated into the amine component to tune reactivity and extend pot life
- Sealants and cast elastomers: achieving specific Shore hardness profiles in sealing and gasketing applications
- It controls crosslink density and reaction kinetics in high-performance polymer formulations.
Commercial specifications
- Purity typically specified at 98% or higher
- Drum and IBC packaging
Other Names (Synonyms)
1,3-diamino-2,4-diethyl-6-methylbenzene|3,5-Diethyltoluene-2,4-diamine|Diethyltoluenediamine (detda)|2,4-diethyl-6-methylbenzene-1,3-diamine|3,5-Diethyl-2,4-toluenediamine
How is Diethyltoluenediamine classified and handled safely? Learn More
Warning
GHS07· Irritant GHS08· Health Hazard GHS09· Environmental Hazard
Hazard Statements
H302 Harmful if swallowed [Warning Acute toxicity, oral]
H312 Harmful in contact with skin [Warning Acute toxicity, dermal]
H319 Causes serious eye irritation [Warning Serious eye damage/eye irritation]
H400 Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]
H410 Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard]
H373 May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]