D210404

2,5-Diphenyloxazole

99%, suitable for scintillation

• Synonym(s): DPO, PPO
• Empirical Formula (Hill Notation): C₁₅H₁₁NO
• CAS Number: 92-71-7
• Molecular Weight: 221.25
• UNSPSC Code: 12352103
• NACRES: NA.23
• PubChem Substance ID: 24893626
• EC Number: 202-181-3
• Beilstein/REAXYS Number: 157021
• MDL number: MFCD00005306
• Assay: 99%
• Form: powder

Properties

• Quality Segment: 200
• assay: 99%
• form: powder
• bp: 360 °C (lit.)
• mp: 72-74 °C (lit.)
• λmax: 303 nm
• suitability: suitable for scintillation
• 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 (DPO), also known as PPO, is a high-purity scintillator with an assay of 99%. This compound has a molecular weight of 221.25 g/mol and is suitable for use in liquid scintillation spectrometry. DPO exhibits fluorescence at a wavelength of 375 nm and serves as an effective wavelength shifter in liquid samples due to its high quantum yield and significant Stokes shift. It is widely used in radiation detection applications and as a dopant in plastic scintillators.

Preparation Note: 2,5-Diphenyloxazole should be stored in a cool, dry place, protected from light to maintain its properties. It is recommended to handle the powder with appropriate personal protective equipment, including gloves and eye protection. Ensure that all work with the compound is performed in a well-ventilated area to minimize exposure.

Application

PPO can be used as a dopant that improves the photo-electric feedback of plastic scintillators which are used as radiation detectors for nuclear materials. It can be coated on peptide substrates to facilitate radioactive labelling which can enable determination of substrate specificity of lysine methyltransferase enzymes. It may also be used in the fabrication of organic luminescent materials which can be used in light emitting diodes (LEDs).

Features and Benefits

• High Purity: With an assay of 99%, DPO ensures reliable performance in scintillation applications.
• Effective Scintillator: Ideal for use in radiation detection, DPO enhances the photo-electric feedback of plastic scintillators.
• Fluorescence Properties: Exhibits strong fluorescence at 375 nm, making it suitable for various optical applications.
• Versatile Applications: Can be used as a dopant to improve scintillator performance, in radioactive labeling, and in the fabrication of organic luminescent materials for LEDs.
• Multiple Size Options: Available in various SKUs, including 25 g and other sizes, allowing flexibility for different research needs.
• Stable Chemical Properties: Maintains stability under appropriate storage conditions, ensuring long-term usability.

Other Notes

• Relative Density: ca. 1.24 (68 °F / 20 °C)
• Solubility: Soluble in Chloroform, Dimethyl Sulfoxide
• Stability : Incompatible with strong oxidizing agents.

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)