Description

4,4'-Methylenebis(2,6-Dimethylaniline) is a high-purity aromatic diamine monomer, also known by its CAS number 4073-98-7. This compound is a critical building block valued for its symmetrical structure and reactivity, which imparts superior thermal and mechanical properties to advanced polymers. It is essential for manufacturers in the polyurethane, epoxy resin, and high-performance materials sectors seeking to enhance product durability and performance under demanding conditions.

Application

• Polymer & Resin Synthesis: A key monomer for producing high-performance polyurethanes and epoxy curing agents, resulting in materials with excellent thermal stability and chemical resistance.
• Advanced Composites: Used as a cross-linking agent or chain extender in fiber-reinforced composites for aerospace, automotive, and sporting goods applications.
• Adhesives & Sealants: Serves as a curing agent in high-strength, temperature-resistant adhesive formulations for industrial bonding.
• Coatings: Incorporated into specialty coating systems that require enhanced hardness, weatherability, and corrosion protection.
• Pharmaceutical Intermediates: Utilized in the synthesis of complex organic molecules and active pharmaceutical ingredients (APIs).
• Chemical Research & Development: Acts as a versatile reagent in organic synthesis and material science R&D for creating novel polymers and small molecules.

Basic Information

Product Name	4,4'-Methylenebis(2,6-Dimethylaniline)
CAS No.	4073-98-7
Molecular Formula	C17H22N2
Molecular Weight	254.37 g/mol
Synonyms	MBDA; 2,2'-Dimethyl-4,4'-methylenedianiline; 4,4'-Methylenebis(2,6-xylidine); Bis(2,6-dimethyl-4-aminophenyl)methane; 2,2'-Dimethylbenzidine; 4,4'-Diamino-3,3',5,5'-tetramethyldiphenylmethane; MDA; 3,3',5,5'-Tetramethyl-4,4'-diaminodiphenylmethane
EINECS	223-791-8

Quality Control

Our 4,4'-Methylenebis(2,6-Dimethylaniline) is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC and GC analysis, to ensure high purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided and available upon request to support your quality assurance protocols.

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, open flames, and strong oxidizing agents. Due to its light-sensitive nature, containers should be amber-colored or stored in dark conditions.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.5%
Melting Point	154 - 158 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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