Description

4,4'-(1,4-Butanediyl)Dioxydianiline is a high-purity aromatic diamine monomer, also known by its CAS number 6245-50-7. This compound serves as a critical building block in advanced polymer synthesis, valued for its symmetrical structure and dual amine functionality. It is primarily sought by manufacturers in the polyimide, epoxy resin, and specialty polyurethane industries for producing high-performance materials with excellent thermal stability and mechanical properties.

Application

• Polyimide Synthesis: A key monomer for manufacturing high-temperature, high-strength polyimide films and coatings used in aerospace and electronics.
• Epoxy Curing Agent: Functions as a curing agent or hardener for epoxy resin systems, enhancing thermal and chemical resistance.
• Specialty Polyurethanes: Used as a chain extender or crosslinker in the production of high-performance polyurethane elastomers and coatings.
• Liquid Crystal Polymers (LCPs): Serves as a diamine component in the synthesis of thermotropic LCPs for precision molding applications.
• Pharmaceutical Intermediates: Employed in the synthesis of complex organic molecules and active pharmaceutical ingredients (APIs).
• Dye and Pigment Manufacturing: Acts as an intermediate in the production of certain azo dyes and organic pigments.

Basic Information

Product Name	4,4'-(1,4-Butanediyl)Dioxydianiline
CAS No.	6245-50-7
Molecular Formula	C16H20N2O2
Molecular Weight	272.34 g/mol
Synonyms	1,4-Bis(4-aminophenoxy)butane; 4,4'-Diaminodiphenoxybutane; 4,4'-(Butane-1,4-diylbis(oxy))dianiline; BAPB; BAPO; Bis(4-aminophenoxy)butane; 4,4'-Bis(4-aminophenoxy)butane; 4,4'-(Tetramethylenedioxy)dianiline
EINECS	228-380-2

Quality Control

Our 4,4'-(1,4-Butanediyl)Dioxydianiline is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for polymer synthesis and fine chemical applications. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and impurity profiles 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). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, the material should be handled and stored under conditions that minimize exposure to direct light.

Specification

Item	Specification
Appearance	White to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.5%
Melting Point	118 - 122 °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.