Description

4,4-Bis(3-Aminophenoxy)Biphenyl (43Bapobp) is a high-purity aromatic diamine monomer with the CAS number 105112-76-3. This compound is a critical building block in advanced polymer synthesis, valued for its rigid biphenyl core and flexible ether linkages. It is essential for manufacturers in the high-performance plastics, electronics, and specialty coatings industries seeking to enhance the thermal and mechanical properties of their materials.

Application

• Polyimide Synthesis: A key monomer for producing high-temperature, high-strength polyimide resins and films used in aerospace and electronics.
• Epoxy Curing Agent: Functions as a high-performance curing agent for epoxy resins, improving heat resistance and mechanical strength in composite materials.
• Polyamide Production: Used in the synthesis of aromatic polyamides (aramids) for fibers and films requiring exceptional thermal stability.
• Liquid Crystal Polymers (LCPs): Serves as a diamine component in the manufacture of LCPs for precision molded components.
• Adhesives and Sealants: Imparts durability and high-temperature performance to advanced industrial adhesives.
• Chemical Intermediate: Utilized in organic synthesis for creating more complex molecules in pharmaceutical and agrochemical research.

Basic Information

Product Name	4,4-Bis(3-Aminophenoxy)Biphenyl (43Bapobp)
CAS No.	105112-76-3
Molecular Formula	C30H24N2O2
Molecular Weight	444.53 g/mol
Synonyms	BAPOBP; 4,4'-Bis(3-aminophenoxy)biphenyl; 1,1'-Biphenyl, 4,4'-bis(3-aminophenoxy)-; 4,4'-[1,1'-Biphenyl]-4,4'-diylbis(oxy)dianiline; 43BAPOBP; 4,4'-Bis(m-aminophenoxy)biphenyl; Bis[4-(3-aminophenoxy)phenyl] ether (common misnomer); 4,4'-(Biphenyl-4,4'-diylbis(oxy))dianiline
EINECS	Contact for details

Quality Control

Our 4,4-Bis(3-Aminophenoxy)Biphenyl is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the exacting standards required for high-performance polymer applications. Certificates of Analysis (COA) documenting all critical parameters are available upon request.

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). This product is easily oxidized and should be stored under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep away from strong oxidizing agents.

Specification

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

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