Description

3,5-Diphenyloxazole CAS NO 2039-49-8 is a high-purity organic heterocyclic compound belonging to the oxazole class, valued for its role as a key intermediate and a versatile fluorophore. Its primary commercial significance lies in its application as a scintillation-grade material and a building block for advanced organic synthesis. This product is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science industries, particularly those developing fluorescent probes, organic light-emitting diodes (OLEDs), and specialty polymers.

Application

• Scintillation Counting: A primary component in liquid scintillation cocktails for the detection and measurement of low-energy beta radiation in biological and environmental research.
• Fluorescent Dye Synthesis: Serves as a core structural unit for synthesizing advanced fluorescent dyes and probes used in bioimaging and diagnostic assays.
• Organic Electronics: Acts as a key intermediate in the production of electron-transport materials and emitters for OLED (Organic Light-Emitting Diode) devices.
• Pharmaceutical Intermediates: Used in the synthesis of complex molecules with potential biological activity for drug discovery and development.
• Agrochemical Research: Employed as a building block for creating novel active ingredients and studying structure-activity relationships.
• Polymer Additives: Incorporated into specialty polymers to impart specific optical or electronic properties.
• Chemical Research: A valuable reagent in heterocyclic and organic synthesis for academic and industrial R&D laboratories.

Basic Information

Product Name	3,5-Diphenyloxazole
CAS No.	2039-49-8
Molecular Formula	C15H11NO
Molecular Weight	221.26 g/mol
Synonyms	PPO; 2,5-Diphenyloxazole; Scintillation Grade PPO; 3,5-Diphenyl-1,3-oxazole; Diphenyloxazole; NSC 51140; 1,3-Oxazole, 2,5-diphenyl-; 2,4-Diphenyloxazole (common misnomer)
EINECS	218-011-4

Quality Control

Our 3,5-Diphenyloxazole is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity, IR and NMR for structural confirmation, and loss on drying. We provide comprehensive Certificates of Analysis (COA) with each shipment to ensure traceability and compliance with your research or production specifications. Our quality commitment supports applications requiring high-purity and consistent performance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and 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, containers should be amber-colored or stored in dark conditions to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	70 - 74 °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.