Description

[1,1':4',1'':3'',1''':4''',1''''-Quinquephenyl]-4,4''''-Dicarboxaldehyde, 5''-(4'-Formyl[1,1'-Biphenyl]-4-Yl)- (9Ci) is a high-purity, multi-functional organic building block featuring a rigid, extended conjugated system with multiple aldehyde groups. This compound is of significant value for advanced materials research and development, particularly in the synthesis of novel organic semiconductors and light-emitting materials. It is primarily needed by R&D chemists and material scientists in the organic electronics, photonics, and specialty polymer industries seeking to create materials with tailored electronic and optical properties.

Application

• Organic Semiconductor Precursor: Serves as a key monomer for constructing conjugated polymers and small molecules used in organic field-effect transistors (OFETs) and organic photovoltaics (OPVs).
• Light-Emitting Material Synthesis: Used in the development of novel emitters for organic light-emitting diodes (OLEDs) and light-emitting electrochemical cells (LECs).
• Liquid Crystal & Discotic Materials: Acts as a core unit for synthesizing advanced liquid crystalline materials with potential application in displays and organic electronics.
• Metal-Organic Framework (MOF) Linker: The multiple aldehyde groups can be utilized in the construction of complex MOFs with specific pore geometries for gas storage or separation.
• Fluorescent Probe & Sensor Development: Its conjugated structure makes it a candidate for developing fluorescent chemosensors and bio-imaging agents.
• Cross-linking Agent for Polymers: Can be used to introduce reactive aldehyde sites into polymer networks for further functionalization or to create thermosetting resins.

Basic Information

Item	Details
Product Name	[1,1':4',1'':3'',1''':4''',1''''-Quinquephenyl]-4,4''''-Dicarboxaldehyde, 5''-(4'-Formyl[1,1'-Biphenyl]-4-Yl)- (9Ci)
CAS No.	805246-78-0
Molecular Formula	C43H26O3
Molecular Weight	590.67 g/mol
Synonyms	5''-(4'-Formyl[1,1'-biphenyl]-4-yl)-[1,1':4',1'':3'',1''':4''',1''''-quinquephenyl]-4,4''''-dicarboxaldehyde; 1,1':4',1'':3'',1''':4''',1''''-Quinquephenyl-4,4''''-dicarboxaldehyde, 5''-(4'-formyl[1,1'-biphenyl]-4-yl)-; Multifunctional Quinquephenyl Dialdehyde; Extended Oligophenylene Dialdehyde; Conjugated Pentaphenyl Derivative
EINECS	Contact for details

Quality Control

Our [1,1':4',1'':3'',1'''-4''',1''''-Quinquephenyl]-4,4''''-Dicarboxaldehyde is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity and batch-to-batch consistency, critical for sensitive materials research. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at room temperature (15-25°C) under an inert atmosphere (e.g., nitrogen or argon) to prevent oxidation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to light brown powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Heavy Metals	< 20 ppm
Residue on Ignition	< 0.1%

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