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2,4-Diethyl-5-methyl-1,3-benzenediamine is an aromatic diamine compound that contains two amine groups attached to a substituted benzene ring.
2,4-Diethyl-5-methyl-1,3-benzenediamine features ethyl and methyl substituents that change the electronic behavior of the ring and influence its chemical reactivity.
2,4-Diethyl-5-methyl-1,3-benzenediamine a versatile intermediate used in several industrial chemical processes.
CAS Number: 170153-38-5
Molecular Formula: C11H18N2
Molecular Weight: 178.27
Synonyms: DTXSID90860872, 170153-38-5, 2,4-Diethyl-5-methyl-1,3-benzenediamine, RefChem:246381, DTXCID508618, Diethylmethylbenzenediamine, 2,4-diethyl-5-methylbenzene-1,3-diamine, Diethyltoluenediamine (mixture of isomers), DSSTox_CID_8618, DSSTox_GSID_28618, SCHEMBL2306350, SCHEMBL30148082, Tox21_303857, NCGC00356950-01, CAS-75389-89-8, NS00004938, 1,3-Benzenediamine, 2,4-diethyl-5-methyl-
2,4-Diethyl-5-methyl-1,3-benzenediamine typically appears as a solid or viscous organic chemical that has a characteristic aromatic amine odor.
2,4-Diethyl-5-methyl-1,3-benzenediamines substituted benzene backbone gives it enhanced stability while the amine groups provide strong nucleophilic behavior.
Because of these combined features, it behaves as a useful building block for polymer synthesis and specialty materials.
2,4-Diethyl-5-methyl-1,3-benzenediamine is mainly used as a precursor or intermediate in the production of polyurethane materials, epoxy systems, and other high-performance polymers.
2,4-Diethyl-5-methyl-1,3-benzenediamines specific substitution pattern on the benzene ring helps control curing rate, crosslinking density, and thermal resistance in final polymer products.
Due to these valuable effects, it is often used in formulations that require strong mechanical durability and chemical resistance.
2,4-Diethyl-5-methyl-1,3-benzenediamine shows selective reactivity because the electron-donating alkyl groups increase the electron density of the aromatic core.
This increased electron density enhances the nucleophilic nature of the amine sites, making the molecule highly reactive toward electrophilic reagents.
As a result, it is frequently chosen in synthetic pathways where controlled aromatic substitution is required.
2,4-Diethyl-5-methyl-1,3-benzenediamine’s structure also contributes to its relatively high boiling point and thermal stability during processing.
This stability allows it to be incorporated into polymer formulations that must endure elevated temperatures without degradation.
Such behavior makes it valuable in manufacturing environments where chemical intermediates must maintain reliability under strenuous conditions.
In addition to its use in polymer chemistry, 2,4-Diethyl-5-methyl-1,3-benzenediamine can act as a curing agent or modifier that influences the hardness and flexibility of final materials.
The two amine groups facilitate crosslinking reactions that form dense polymer networks with improved mechanical performance.
These properties enable the material to be used in applications that demand long-term durability and resistance to environmental stress.
The substituted benzene ring also helps tune solubility and compatibility with various organic solvents and resin systems.
2,4-Diethyl-5-methyl-1,3-benzenediamine tunability allows chemists to adjust how quickly or slowly the material blends, reacts, or cures in industrial formulations.
Such control is essential when designing adhesives, sealants, protective coatings, or elastomers that must meet strict quality specifications.
Because of its active functional groups, the molecule often participates in chain-extension reactions that deepen polymer structure and enhance toughness.
These reactions contribute to the formation of rigid, load-bearing components found in automotive, aerospace, and construction materials.
Consequently, 2,4-Diethyl-5-methyl-1,3-benzenediamine plays a subtle but important role in the performance of many engineered products.
Boiling point: 322.2±37.0 °C(Predicted)
Density: 1.013±0.06 g/cm3(Predicted)
pka: 4.96±0.10(Predicted)
The substituted aromatic ring in 2,4-Diethyl-5-methyl-1,3-benzenediamine also contributes to improved resistance against oxidative degradation.
This resistance allows the compound to remain stable in demanding industrial processes that involve heat, oxygen exposure, or prolonged curing cycles.
Such stability ensures that the chemical maintains consistent performance during synthesis and does not prematurely deteriorate.
The two amine groups on the ring strongly influence electron distribution, which in turn affects how the compound participates in electrophilic and nucleophilic reactions.
This dual reactivity allows it to serve both as a building block for advanced polymers and as an active participant in crosslinking reactions.
Because of this versatility, it is employed in systems where precision control over molecular architecture is required.
2,4-Diethyl-5-methyl-1,3-benzenediamine structure helps modulate hardness and flexibility in polymer networks by adjusting how tightly the chains interact with each other.
In applications requiring both durability and controlled softness, this compound helps create balanced mechanical profiles.
This controlled tuning is particularly important in elastomers, flexible foams, and engineered coatings.
When combined with 2,4-Diethyl-5-methyl-1,3-benzenediamine or epoxy resins, the compound can significantly influence cure rate, gel time, and final mechanical strength.
These influences are important because they determine how the final product behaves during manufacturing and throughout its service life.
Industries value this compound precisely because it provides predictable curing performance without unwanted variability.
2,4-Diethyl-5-methyl-1,3-benzenediamines molecular geometry also contributes to improved compatibility with hydrophobic resin systems, making blending and homogenization more efficient.
This compatibility is valuable in formulations that require smooth processing with minimal phase separation or mixing difficulties.
As a result, manufacturers can achieve high-quality materials with uniform performance properties.
The aromatic amine groups provide strong hydrogen-bonding capabilities, allowing the molecule to interact intimately with resin structures during polymer formation.
These interactions can enhance cohesion, internal strength, and resistance to crack propagation.
This improvement in structural robustness is a key reason why the compound is selected for specialized polymer engineering.
In cured materials, 2,4-Diethyl-5-methyl-1,3-benzenediamine can help increase resistance to chemical attack from oils, fuels, and solvents.
This resistance makes it suitable for components exposed to harsh industrial conditions or aggressive chemical environments.
Consequently, it finds use in coatings, adhesives, and molded parts that must survive long-term chemical exposure.
2,4-Diethyl-5-methyl-1,3-benzenediamine’s unique pattern of ethyl and methyl substituents helps spread mechanical forces across the aromatic ring during stress.
This force distribution reduces the likelihood of localized failure points and helps maintain the integrity of the final polymer.
Such mechanical reliability is essential in high-performance applications where failure is not acceptable.
The molecular arrangement of 2,4-Diethyl-5-methyl-1,3-benzenediamine also affects its steric environment, which influences how the amine groups approach reacting species.
These steric effects can slow or accelerate certain reaction pathways, giving chemists additional control when designing polymerization processes.
Such adjustable reactivity characteristics make it an appealing component in advanced material engineering.
2,4-Diethyl-5-methyl-1,3-benzenediamine’s aromatic core allows it to absorb and dissipate energy more effectively than many aliphatic amines.
This energy-dissipating capacity contributes to improved shock resistance and thermal endurance in the resulting polymer matrices.
Therefore, materials created using this compound often display superior resilience under mechanical stress.
In certain formulations, the presence of both ethyl and methyl substituents enhances flexibility in the polymer network without sacrificing strength.
This unique balance between elasticity and rigidity helps manufacturers create products that require controlled deformation while retaining structural integrity.
Examples include flexible adhesives, impact-modifying agents, and coatings designed to resist cracking.
The molecule can also influence viscosity and flow characteristics during the mixing and curing stages of polymer production.
When added in controlled amounts, 2,4-Diethyl-5-methyl-1,3-benzenediamine helps maintain a workable consistency while supporting efficient crosslink formation.
This balance is crucial in industrial environments where processing efficiency and product reliability must coexist.
2,4-Diethyl-5-methyl-1,3-benzenediamines aromatic diamine structure provides strong interaction capability with reactive resins, allowing it to anchor tightly within growing polymer chains.
This anchoring effect contributes to improved bonding performance, especially in adhesives designed for metal, composite, or structural substrates.
As a result, 2,4-Diethyl-5-methyl-1,3-benzenediamine is valued in industries that require high-strength, long-lasting adhesive solutions.
2,4-Diethyl-5-methyl-1,3-benzenediamine can be incorporated into specialized chemical systems such as high-performance elastomers and abrasion-resistant coatings.
These systems benefit from its ability to enhance crosslink density while contributing to chemical stability.
Such characteristics are essential in harsh environments where materials face heat, solvents, or mechanical wear.
Uses Of 2,4-Diethyl-5-methyl-1,3-benzenediamine:
2,4-Diethyl-5-methyl-1,3-benzenediamine is widely used as an intermediate in the production of high-performance polyurethane materials.
Its reactive amine groups allow it to participate in curing reactions that define the hardness, elasticity, and durability of the final polymer.
This makes it an important component in the creation of industrial foams, elastomers, and structural composites.
2,4-Diethyl-5-methyl-1,3-benzenediamine plays a significant role in the formulation of epoxy resins, where it functions as a curing agent that controls crosslink density and mechanical strength.
This ability to influence crosslinking allows manufacturers to produce coatings, adhesives, and sealants with very precise performance characteristics.
As a result, it is often chosen for projects requiring strong adhesion, chemical resistance, and long-term stability.
2,4-Diethyl-5-methyl-1,3-benzenediamine is also used in advanced adhesive systems where strong bonding between metals, composites, or plastics is required.
Its aromatic structure enhances interaction with resin matrices, leading to improved cohesion and higher load-bearing capacity in the final adhesive.
This makes it suitable for applications in automotive assembly, aerospace components, and heavy industrial equipment.
In specialized polymer systems, it is utilized to tailor rheology and processing behavior during the mixing and curing stages.
By adjusting viscosity and reaction rate, it allows manufacturers to maintain a workable processing window while achieving the desired final properties.
This controlled processing behavior is essential in industries that depend on consistent and efficient manufacturing cycles.
It is sometimes added to resin formulations to enhance thermal resistance and maintain material integrity at elevated temperatures.
This role is important in sectors that demand heat-stable components, such as electronics, energy systems, and mechanical housings.
Because of this thermal stability, materials containing this compound can withstand demanding operational environments without deformation.
2,4-Diethyl-5-methyl-1,3-benzenediamine is valued as a performance additive in coatings that require excellent abrasion resistance and long-term durability.
Its inclusion strengthens the polymer structure and increases resistance to physical wear, chemical attack, and environmental exposure.
These properties make it suitable for protective coatings used on machinery, metal structures, and industrial flooring.
Manufacturers also use it to modify elastomer behavior, allowing for the creation of rubber-like materials with controlled elasticity and toughness.
The resulting elastomers can withstand repeated flexing and impact without cracking or losing structural integrity.
Such materials are used in seals, gaskets, vibration-damping components, and other parts requiring long-lasting flexibility.
2,4-Diethyl-5-methyl-1,3-benzenediamines chemical characteristics also make it compatible with fuel-resistant and oil-resistant polymer formulations.
These formulations are essential in automotive, marine, and industrial systems that frequently encounter fuels, lubricants, and solvents.
By strengthening resistance to chemical attack, it improves the reliability and lifespan of these specialized components.
2,4-Diethyl-5-methyl-1,3-benzenediamine is also used in the synthesis of specialty thermosetting polymers that require high rigidity combined with balanced flexibility.
These thermosets benefit from the compound’s ability to form dense, interconnected networks that improve long-term structural performance.
Such materials are commonly employed in applications involving mechanical stress, vibration, and continuous operational loads.
2,4-Diethyl-5-methyl-1,3-benzenediamine serves as a modifier in polyurethane elastomers to adjust hardness profiles and improve fatigue resistance in dynamic applications.
By controlling how the polymer chains interact, it helps create elastomers that withstand millions of deformation cycles without cracking or losing function.
This makes it highly suitable for use in conveyor belts, industrial rollers, and mechanical damping systems.
2,4-Diethyl-5-methyl-1,3-benzenediamine can act as a chain extender in complex polymer architectures where uniform molecular growth is essential.
Chain extension reactions involving aromatic diamines lead to stronger, more coherent polymer backbones that exhibit enhanced durability.
Because of this structural reinforcement, the resulting materials are favored for use in engineering plastics and load-bearing components.
In protective industrial coatings, 2,4-Diethyl-5-methyl-1,3-benzenediamine helps enhance impact resistance and prevent chipping or surface fatigue under harsh working conditions.
This protective capability allows surfaces treated with such coatings to endure repeated mechanical abrasion and chemical exposure.
Therefore, 2,4-Diethyl-5-methyl-1,3-benzenediamine is utilized in coatings for heavy machinery, marine equipment, and industrial infrastructure.
2,4-Diethyl-5-methyl-1,3-benzenediamine is also used in composite material systems where the resin matrix must tightly bond to reinforcing fibers such as carbon or glass.
The compound’s reactive amine groups promote strong interface adhesion, improving load transfer and preventing fiber delamination.
This property is essential in the fabrication of lightweight, high-strength composite structures used in aerospace, automotive, and advanced manufacturing.
In certain adhesive formulations, it contributes to rapid curing behavior that allows fast assembly processes without compromising final bond strength.
This accelerated curing profile is particularly advantageous in mass-production environments where efficiency and throughput are critical.
As a result, the compound is often selected for high-speed assembly lines and automated adhesive systems.
2,4-Diethyl-5-methyl-1,3-benzenediamine can also be included in resin mixtures designed to create chemically resistant linings and barriers for industrial tanks and pipes.
These linings must withstand continuous contact with corrosive chemicals, high temperatures, and abrasive fluid flows.
By reinforcing the chemical stability of the polymer matrix, the compound extends the service life of protective linings in demanding chemical-processing environments.
The compound finds use in polyurethane foams that require enhanced load-bearing capacity and improved long-term compression behavior.
The aromatic structure increases the stiffness and resilience of the foam, preventing permanent deformation under repeated pressure.
Such foams are used in industrial seating, vibration-damping blocks, and structural support components.
2,4-Diethyl-5-methyl-1,3-benzenediamine is also applied in performance coatings that require resistance to ultraviolet degradation and thermal cycling.
These coatings benefit from the compound’s ability to strengthen the polymer network and reduce brittleness over time.
This durability is essential for outdoor structures, transportation equipment, and machinery exposed to shifting environmental conditions.
Safety Profile Of 2,4-Diethyl-5-methyl-1,3-benzenediamine:
2,4-Diethyl-5-methyl-1,3-benzenediamine can cause irritation to the skin because aromatic diamines often penetrate the outer layers of the skin and interact with underlying tissues.
Prolonged or repeated skin contact may lead to inflammation, redness, or sensitization due to the reactive amine groups in the molecule.
These effects make it necessary to handle the compound using protective gloves and barrier materials.
2,4-Diethyl-5-methyl-1,3-benzenediamine may cause significant eye irritation if it comes into direct contact with the eyes due to its ability to disrupt delicate mucous membranes.
Exposure can trigger tearing, burning sensations, and temporary visual discomfort that may persist without proper rinsing and treatment.
Because of these risks, eye protection is strongly recommended during handling or transfer operations.
Inhalation of vapors or fine particulates may irritate the respiratory tract because the amine groups can react with moisture in the airways.
This irritation may cause coughing, throat discomfort, or breathing difficulty depending on the amount inhaled.
Working in well-ventilated areas or using respiratory protection helps minimize inhalation hazards.
2,4-Diethyl-5-methyl-1,3-benzenediamine can be harmful if ingested because aromatic amines can interfere with metabolic processes in the digestive system.
Ingestion may lead to nausea, abdominal discomfort, or more serious systemic effects depending on the dose consumed.
Accidental ingestion should be treated as a medical situation requiring immediate evaluation.
Some aromatic diamines may cause sensitization reactions after repeated exposure, leading the immune system to respond more strongly during future contact.
This sensitization may appear as rashes, swelling, or delayed inflammatory reactions that become more intense over time.
Avoiding repeated skin contact is important to reduce the risk of developing these responses.
2,4-Diethyl-5-methyl-1,3-benzenediamine may be harmful to internal organs if significant exposure occurs because aromatic amines can produce metabolites that stress the liver or kidneys.
These effects are usually associated with high doses or chronic industrial exposure rather than casual incidental contact.
However, good industrial hygiene practices help prevent exposure levels that could contribute to systemic toxicity.
2,4-Diethyl-5-methyl-1,3-benzenediamine may decompose at high temperatures or under strong oxidative conditions to form irritating or harmful byproducts.
