Description

p-Bis[2-(5-p-Biphenyloxazolyl)]Benzene is a high-purity organic compound, widely recognized as a key scintillator and fluorescent material. Its core value lies in its exceptional ability to efficiently convert high-energy radiation into detectable light pulses, making it indispensable for precision measurement. This compound is critically needed by manufacturers and research institutions in the nuclear, medical diagnostics, and high-energy physics sectors for applications requiring sensitive radiation detection and liquid scintillation counting.

Application

• Primary Scintillator in liquid scintillation counters for low-level radiation measurement (e.g., β-emitters like Tritium and Carbon-14).
• Wavelength Shifter (Secondary Fluor) in large-volume particle physics detectors to optimize light yield and match photomultiplier tube sensitivity.
• Research & Development of novel organic light-emitting diodes (OLEDs) and advanced fluorescent probes.
• Quality Control and calibration of radiation detection equipment in environmental monitoring and nuclear facilities.
• Medical Diagnostics as a component in certain assay kits and research tools utilizing fluorescence detection.
• Academic Research in photophysics, materials science, and the development of new scintillating materials.

Basic Information

Product Name	p-Bis[2-(5-p-Biphenyloxazolyl)]Benzene
CAS No.	494-67-7
Molecular Formula	C38H24N2O2
Molecular Weight	540.61 g/mol
Synonyms	POPOP; 1,4-Bis(5-phenyl-2-oxazolyl)benzene; 1,4-Bis(5-phenyloxazol-2-yl)benzene; Bis-MSB; p-Bis(o-methylstyryl)benzene (historical/related); Scintillation Grade POPOP; p-Bis[2-(5-phenyloxazolyl)]benzene; 2,2'-(1,4-Phenylene)bis[5-phenyloxazole]
EINECS	207-800-7

Quality Control

Our p-Bis[2-(5-p-Biphenyloxazolyl)]Benzene (POPOP) is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and fluorescence spectroscopy for performance verification, to ensure it meets the exacting standards required for scintillation applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and specific performance characteristics is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This material is light-sensitive and should be stored away from light. Due to its organic nature, it should be kept under an inert atmosphere if long-term storage is required to minimize potential oxidation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to pale yellow crystalline powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 99.0%
Melting Point	245 - 250 °C
Fluorescence Emission Max	410 - 420 nm
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.