Description

4,4'-Methylenebis(n-Methylaniline) is a high-purity aromatic diamine compound, serving as a critical building block in advanced polymer synthesis. Its primary value lies in its role as a chain extender and curing agent, imparting enhanced thermal stability and mechanical properties to the final materials. This product is essential for manufacturers in the polyurethane, epoxy resin, and high-performance elastomer industries seeking reliable and consistent raw materials for demanding applications.

Application

• Polyurethane Elastomers & Coatings: Acts as a chain extender and curing agent to produce materials with excellent abrasion resistance, toughness, and low-temperature flexibility.
• Epoxy Resin Systems: Used as a curing agent for epoxy resins, resulting in cured systems with high heat deflection temperature and good chemical resistance.
• High-Performance Adhesives & Sealants: A key component in formulating adhesives and sealants that require durability and strength under thermal and mechanical stress.
• Composite Materials: Employed in the production of fiber-reinforced composites for aerospace, automotive, and industrial applications.
• Rubber Chemicals: Functions as an antioxidant and antiozonant precursor in the stabilization of synthetic rubbers.
• Chemical Intermediate: Serves as a versatile intermediate in organic synthesis for pharmaceuticals, agrochemicals, and dyes.

Basic Information

Product Name	4,4'-Methylenebis(n-Methylaniline)
CAS No.	1807-55-2
Molecular Formula	C15H18N2
Molecular Weight	226.32 g/mol
Synonyms	4,4'-Methylenebis(N-methylaniline); 4,4'-Methylenebis(N-methylbenzenamine); Bis(4-(methylamino)phenyl)methane; MBNA; MDA (Methylenedianiline) derivative; N,N'-Dimethyl-4,4'-methylenedianiline; Curene® 442 (trade name); Tonox® M-MDA (trade name)
EINECS	217-312-0

Quality Control

Our 4,4'-Methylenebis(n-Methylaniline) is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets the high-purity standards required for industrial and specialty chemical applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, the container should be opaque or stored in darkness. Keep the container tightly sealed when not in use to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	White to light yellow crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.5%
Melting Point	85 - 90 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.