Description

4-[(4-Bromophenyl)(4-Formylphenyl)Amino]Benzaldehyde is a high-purity triarylamine-based aromatic dialdehyde compound widely employed as a key building block in advanced organic synthesis. Its unique structure—featuring two aldehyde groups and a brominated arylamino core—confers exceptional utility in constructing conjugated molecular architectures for optoelectronic materials. This compound is critically valued by R&D chemists and process engineers developing high-performance OLED emitters, hole-transport layers (HTLs), and covalent organic frameworks (COFs). It is essential for manufacturers serving the global display technology, semiconductor, and specialty polymer sectors.

Application

• Synthesis of thermally stable hole-transport materials (HTMs) for OLED displays and lighting panels
• Building block for emissive dopants and host materials in red/orange phosphorescent OLED devices
• Monomer in the preparation of Schiff-base-linked covalent organic frameworks (COFs) for gas separation membranes
• Intermediate in the development of bromine-functionalized photoconductive polymers for organic photovoltaics (OPV)
• Key precursor for asymmetric triarylamine dyes used in nonlinear optical (NLO) applications
• Structural motif in metal–organic framework (MOF) linkers requiring orthogonal aldehyde reactivity and halogen-directed cross-coupling

Basic Information

Product Name	4-[(4-Bromophenyl)(4-Formylphenyl)Amino]Benzaldehyde
CAS No.	167859-41-8
Molecular Formula	C20H14BrNO2
Molecular Weight	388.24 g/mol
Synonyms	4-(Bis(4-formylphenyl)amino)benzaldehyde; 4-[(4-Formylphenyl)(4-bromophenyl)amino]benzaldehyde; 4-Bis(4-formylphenyl)amino-4'-bromobenzaldehyde; 4-(4-Bromophenylamino)-4'-formylbenzophenone; N-(4-Bromophenyl)-N-(4-formylphenyl)-4-formylbenzenamine; 4-[(4-Bromophenyl)(p-tolyl)amino]benzaldehyde (structural analog reference); TFBBA (abbreviated trade name); BFBBA (alternative abbreviation)
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) are available upon request. All batches are verified for identity (IR, HPLC retention time matching), purity (≥99.0% by HPLC), residual solvents (meets ICH Q3C guidelines), and heavy metals (≤10 ppm total). Testing follows ISO/IEC 17025-accredited protocols where applicable.

Storage

Preserve in a tightly closed container, protected from light. Store under inert atmosphere (nitrogen or argon) at 15–25°C. Keep away from oxidizing agents and strong bases. Ensure low-humidity environment (relative humidity <40%) to prevent degradation due to moisture sensitivity.

Specification

Item	Specification
Appearance	Off-white to pale yellow crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥99.0%
Single Impurity (HPLC)	≤0.5%
Melting Point	228–232°C
Loss on Drying	≤0.5%
Residue on Ignition	≤0.1%

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