Description

4,4'-(1,3-Phenylenediisopropylidene)Bisaniline is a high-purity aromatic diamine monomer of significant industrial importance. This compound serves as a critical building block in the synthesis of advanced polymers, offering excellent thermal stability and mechanical properties. It is primarily sought after by manufacturers in the polyimide, epoxy resin, and specialty polyurethane sectors for producing high-performance materials used in demanding applications.

Application

• Polyimide Synthesis: A key monomer for producing high-temperature, chemically resistant polyimide films and coatings used in aerospace and electronics.
• Epoxy Curing Agent: Functions as a high-performance curing agent for epoxy resin systems, enhancing thermal and mechanical properties in composites and adhesives.
• Specialty Polyurethanes: Used in the formulation of polyurethane elastomers and coatings that require superior heat resistance and durability.
• Liquid Crystal Polymers (LCPs): Acts as a diamine component in the production of high-strength, heat-resistant LCPs for connectors and precision components.
• Chemical Intermediate: Serves as a versatile intermediate in organic synthesis for pharmaceuticals and agrochemicals.
• Advanced Composite Materials: Integral to the production of fiber-reinforced composites for automotive and industrial applications.

Basic Information

Product Name	4,4'-(1,3-Phenylenediisopropylidene)Bisaniline
CAS No.	2687-27-6
Molecular Formula	C24H28N2
Molecular Weight	344.49 g/mol
Synonyms	Bis[4-(4-aminophenoxy)phenyl]methane; 1,3-Bis[4-(4-aminophenoxy)phenyl]propane (common misnomer); 4,4'-(1,3-Phenylenebis(1-methylethylidene))bisaniline; Bisaniline M; MDA; 4,4'-Methylenedianiline derivative; Diamine monomer for polyimides; BAPP (common abbreviation)
EINECS	Contact for details

Quality Control

Our 4,4'-(1,3-Phenylenediisopropylidene)Bisaniline is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for polymer synthesis. Certificates of Analysis (COA) documenting purity, color, and moisture content are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product quality and performance in sensitive polymerization reactions.

Specification

Item	Specification
Appearance	White to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 99.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.0%

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