Description

3,4'-Diaminodiphenylmethane is a versatile aromatic diamine compound, primarily serving as a key building block in polymer synthesis. Its bifunctional amine groups make it a crucial intermediate for creating high-performance materials with tailored properties. This product is essential for manufacturers in the polymer, epoxy resin, and specialty chemical industries seeking reliable and consistent raw materials for their production processes.

Application

• Epoxy Curing Agent: A vital component for curing epoxy resins, imparting thermal stability and mechanical strength to coatings, adhesives, and composite materials.
• Polyurethane Precursor: Used in the synthesis of polyurethane elastomers and foams, contributing to durability and chemical resistance.
• Polyimide and Polyamide Production: Acts as a monomer for manufacturing high-temperature resistant polymers used in aerospace and electronics.
• Chemical Intermediate: Serves in the synthesis of dyes, pigments, and other complex organic compounds.
• Rubber Additive: Functions as an antioxidant or vulcanization accelerator in specialty rubber formulations.
• Research & Development: Employed in pharmaceutical and agrochemical research for novel molecule synthesis.

Basic Information

Product Name	3,4'-Diaminodiphenylmethane
CAS No.	19430-83-2
Molecular Formula	C13H14N2
Molecular Weight	198.27 g/mol
Synonyms	3,4'-Diaminodiphenylmethane; 3,4'-Methylenedianiline; 4-(3-Aminobenzyl)aniline; 1,1'-Methylenebis(3-aminobenzene); MDA (3,4'-isomer); Benzenamine, 4-[(3-aminophenyl)methyl]-; 3,4'-DADPM; 3,4'-Diaminodiphenylmethane
EINECS	243-090-5

Quality Control

Our 3,4'-Diaminodiphenylmethane is manufactured under a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot is tested against rigorous in-house specifications, which typically include assay, identity confirmation, and impurity profiling. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your technical requirements.

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). Due to its hygroscopic and easily oxidized nature, it is recommended to store the product under an inert atmosphere (e.g., nitrogen) for long-term preservation and to minimize moisture uptake.

Specification

Item	Specification
Appearance	Light yellow to brown crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	85 - 90 °C
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%

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