Description

3,3'-Diaminodiphenylmethane CAS NO 19471-12-6 is a high-purity aromatic diamine compound, serving as a critical building block in advanced polymer synthesis. Its bifunctional amine structure provides excellent reactivity for creating high-performance materials with tailored thermal and mechanical properties. This product is essential for manufacturers in the epoxy resin, polyurethane, and specialty chemical industries seeking reliable and consistent raw materials for demanding applications.

Application

• Epoxy Curing Agent: A key intermediate for formulating high-performance epoxy hardeners and cross-linking agents used in composites, adhesives, and coatings.
• Polyurethane Synthesis: Acts as a chain extender and curing agent in the production of specialized polyurethane elastomers and foams.
• Polyimide Precursor: Used in the synthesis of polyimide resins and films, which are valued for their exceptional thermal stability in aerospace and electronics.
• Dye and Pigment Intermediate: Serves as a precursor in the manufacture of azo dyes and organic pigments.
• Pharmaceutical Intermediate: Employed in the synthesis of certain active pharmaceutical ingredients (APIs) and fine chemicals.
• Corrosion Inhibitor Formulation: A component in specialty chemical formulations designed to protect metals.
• Research & Development: Utilized in academic and industrial R&D for developing novel polymers and organic compounds.

Basic Information

Product Name	3,3'-Diaminodiphenylmethane
CAS No.	19471-12-6
Molecular Formula	C13H14N2
Molecular Weight	198.27 g/mol
Synonyms	3,3'-Methylenedianiline; 3,3'-Diaminodiphenylmethane; Bis(3-aminophenyl)methane; 3,3'-DADPM; MDA (3,3'- isomer); 1,1'-Methylenebis(3-aminobenzene); 3,3'-Diaminodiphenyl Methane; 4,4'-Methylenedianiline isomer
EINECS	243-103-4

Quality Control

Our 3,3'-Diaminodiphenylmethane is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications and is free from critical impurities. Certificates of Analysis (COA) documenting all test results are available upon request to support your quality assurance and regulatory compliance needs.

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). This material is easily oxidized and should be kept under an inert atmosphere (e.g., nitrogen) for long-term storage to maintain purity. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Light yellow to brown crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	82 - 86 °C
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	≤ 2.0% total

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