Description

p-Quaterphenyl is a high-purity organic compound belonging to the class of oligophenylenes, characterized by its extended conjugated aromatic system. This structure makes it a valuable intermediate and functional material in advanced technological applications where thermal stability and specific optical properties are required. It is essential for manufacturers and researchers in the electronics, specialty polymers, and organic synthesis sectors seeking reliable, high-quality raw materials.

Application

• Organic Light-Emitting Diodes (OLEDs): Used as a host or dopant material in emissive layers due to its excellent charge transport and luminescent properties.
• Liquid Crystal Displays (LCDs): Serves as a component in liquid crystal mixtures and alignment layers to enhance performance and stability.
• Scintillation Crystals: Acts as a primary fluor or wavelength shifter in radiation detection equipment for high-energy physics and medical imaging.
• Specialty Polymers & Advanced Materials: A key monomer or additive for producing high-temperature, high-performance polymers and engineering plastics.
• Organic Photovoltaics (OPVs): Employed in the active layer of solar cells to improve light absorption and electron mobility.
• Chemical Synthesis & Pharmaceutical Intermediates: Functions as a versatile building block for synthesizing complex organic molecules, including potential pharmaceutical agents.
• UV Stabilizers & Optical Brighteners: Incorporated into coatings, plastics, and textiles to absorb harmful UV radiation and enhance visual appearance.
• Research & Development: A critical reference standard and starting material in academic and industrial R&D for novel organic electronic materials.

Basic Information

Product Name	p-Quaterphenyl
CAS No.	135-70-6
Molecular Formula	C24H18
Molecular Weight	306.40 g/mol
Synonyms	1,1':4',1'':4'',1'''-Quaterphenyl; p-Quaterphenyl; [1,1':4',1'':4'',1'''-Quaterphenyl]-4,4''''-diyl; 4,4'''-Di-p-terphenyl; p-Terphenyl dimer; p-Quaterphenylene; p-Tetraphenyl; p-Terphenyl-4,4'''-diyl
EINECS	205-213-6

Quality Control

Our p-Quaterphenyl is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling, to meet exacting customer specifications. A Certificate of Analysis (COA) detailing all quality parameters is provided with every shipment, ensuring full traceability and compliance with your internal quality standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flames. For long-term storage, consider an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	308 - 312 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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