D4630

2,5-Diphenyloxazole

suitable for liquid scintillation spectrometry

• Synonym(s): DPO, PPO
• Empirical Formula (Hill Notation): C₁₅H₁₁NO
• CAS Number: 92-71-7
• Molecular Weight: 221.25
• UNSPSC Code: 12352100
• NACRES: NA.22
• PubChem Substance ID: 24893888
• EC Number: 202-181-3
• Beilstein/REAXYS Number: 157021
• MDL number: MFCD00005306
• Form: powder

Properties

• form: powder
• Quality Segment: 200
• bp: 360 °C (lit.)
• mp: 72-74 °C (lit.)
• suitability: suitable for liquid scintillation spectrometry
• SMILES string: c1ccc(cc1)-c2cnc(o2)-c3ccccc3
• InChI: 1S/C15H11NO/c1-3-7-12(8-4-1)14-11-16-15(17-14)13-9-5-2-6-10-13/h1-11H
• InChI key: CNRNYORZJGVOSY-UHFFFAOYSA-N

Description

General description

2,5-Diphenyloxazole (also known as PPO or p-phenylphenoxazole) is a fluorescent organic compound. It can be also used as an organic scintillator due to its high photoluminescence quantum yield and intriguing luminescent properties. It is widely used as a fluorescent probe or dye in analytical chemistry and biochemistry.

Application

2,5-Diphenyloxazole (PPO) can be used in:

• fluorography techniques for the detection of tritium, tritiated glycopeptides, and 35S labeled proteins.
• liquid scintillation cocktails as primary and secondary fluors.

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk: WGK 3
• flash_point_f: 386.6 - 393.8 °F - closed cup
• flash_point_c: 197 - 201 °C - closed cup
• ppe: Eyeshields, Gloves, type N95 (US)