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Organic Intermediate/Raw materials

4,4′-Methylenebis(2-ethylbenzenamine) CAS 19900-65-3

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Product Details

Chemical Name: 4,4′-Methylenebis(2-ethylbenzenamine)

Synonyms: 4,4′-Diamino-3,3′-diethyl-diphenylmethane

Molecular Structure:


Product Typical Properties

Items Specification
Cas No 19900-65-3
Molecular Formula C17H22N2
Molecular Weight 254.37
Appearance Dark brown liquid
Assay % ≥95.0
Water % ≤0.1
Viscosity mpas/25℃ 2000-5000



This product is an aromatic diamine chain extender with good compatibility and compatibility with TDI and MDI prepolymers. It has a fast reaction rate and can be used in reaction injection molding and polyurea spraying processes when paired with E100. The product has excellent physical and dynamic mechanical properties. It is also used as a polyurea elastic waterproof material, which can effectively improve the strength, resistance to plant puncture, and aging resistance of the material; It can also be used as a curing agent for epoxy resin, giving products good tensile, tear resistance, electrical insulation, and heat resistance properties.



Product Usage

Mainly used in adhesives, fiber winding, laminates, high-performance coatings, and tank lining coatings, as curing agents for epoxy resins and chain extenders for polyurethane monomers.


Product Packaging



Product Storage

Please store in a dry, cool and dark place




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