Description

4,4'-(p-Phenylenediisopropylidene)Bis[n-Phenylaniline] is a high-purity aromatic diamine compound, serving as a critical building block in advanced polymer synthesis. Its value lies in its unique molecular structure, which provides excellent thermal stability and reactivity, making it indispensable for creating high-performance materials. This product is essential for manufacturers in the polyimide, epoxy resin, and specialty chemical industries who require reliable, high-quality intermediates for demanding applications.

Application

• As a key monomer in the synthesis of high-temperature, high-performance polyimide resins for aerospace and electronics.
• As a curing agent or chain extender for advanced epoxy resin systems, enhancing thermal and mechanical properties.
• In the production of specialty polyamides and polyurethanes for industrial coatings and adhesives.
• As a precursor for photosensitive polymers and photoresists used in microelectronics fabrication.
• In research and development of novel liquid crystal polymers (LCPs) and engineering plastics.
• For the synthesis of pharmaceutical intermediates and other fine chemicals requiring a rigid aromatic diamine core.

Basic Information

Product Name	4,4'-(p-Phenylenediisopropylidene)Bis[n-Phenylaniline]
CAS No.	37748-88-2
Molecular Formula	C36H34N2
Molecular Weight	494.67 g/mol
Synonyms	Bis[4-(4-aminophenoxy)phenyl]methane; 4,4'-Bis(4-aminophenoxy)diphenylmethane; 1,1-Bis[4-(4-aminophenoxy)phenyl]ethane; BAPP (common abbreviation); Bisaniline P; 4,4'-(1-Phenylethylidene)bisaniline; 4,4'-(α-Methylbenzylidene)bisaniline; MDA-BisAniline P
EINECS	Contact for details

Quality Control

Our production of 4,4'-(p-Phenylenediisopropylidene)Bis[n-Phenylaniline] adheres to stringent quality management protocols to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including assay, purity profiling, and identification, to meet the exacting standards required for polymer synthesis. A Certificate of Analysis (COA) detailing all test results is provided with every shipment.

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 sensitivity to oxidation, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.5%
Melting Point	155 - 165 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Related Substances (HPLC)	Total impurities ≤ 1.5%

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