2,5-Diphenyloxazole
- CAS No.
- 92-71-7
- Chemical Name:
- 2,5-Diphenyloxazole
- Synonyms
- PPO;DPO;Polyphenylene ether;DPO PPO;Tritosol;usafek-6775;USAF ek-6775;2,5-DiphenyL;Diphenyloxazole;dpo(scintillator)
- CBNumber:
- CB3693821
- Molecular Formula:
- C15H11NO
- Molecular Weight:
- 221.25
- MOL File:
- 92-71-7.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/5/31 17:33:32
| Melting point | 72-74 °C(lit.) |
|---|---|
| Boiling point | 360 °C(lit.) |
| Density | 1.06 |
| vapor pressure | 0.002Pa at 25℃ |
| refractive index | 1.6231 (estimate) |
| Flash point | 360°C |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | very faint turbidity in Methanol |
| form | Liquid |
| pka | 0.39±0.10(Predicted) |
| color | White |
| Water Solubility | NEGLEGIBLE |
| BRN | 157021 |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| LogP | 4.1 at 30℃ and pH5.6 |
| CAS DataBase Reference | 92-71-7(CAS DataBase Reference) |
| NIST Chemistry Reference | Oxazole, 2,5-diphenyl-(92-71-7) |
| EPA Substance Registry System | Oxazole, 2,5-diphenyl- (92-71-7) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H319-H413 | |||||||||
| Precautionary statements | P305+P351+P338 | |||||||||
| Hazard Codes | Xi,Xn | |||||||||
| Risk Statements | 36/37/38-36-22 | |||||||||
| Safety Statements | 24/25-25-24-36/37-26 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | RP6825000 | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 29349990 | |||||||||
| NFPA 704 |
|
2,5-Diphenyloxazole price More Price(21)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | D4630 | 2,5-Diphenyloxazole suitable for liquid scintillation spectrometry | 92-71-7 | 100G | ₹10716.75 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | D4630 | 2,5-Diphenyloxazole suitable for liquid scintillation spectrometry | 92-71-7 | 500G | ₹48095.48 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | D4630 | 2,5-Diphenyloxazole suitable for liquid scintillation spectrometry | 92-71-7 | 1KG | ₹64257.2 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | D210404 | 2,5-Diphenyloxazole 99%, suitable for scintillation | 92-71-7 | 25G | ₹4882.08 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | D210404 | 2,5-Diphenyloxazole 99%, suitable for scintillation | 92-71-7 | 100G | ₹13325.58 | 2022-06-14 | Buy |
2,5-Diphenyloxazole Chemical Properties,Uses,Production
Chemical Properties
light beige solid
Uses
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).
General Description
2,5-Diphenyloxazole (PPO) is an oxazole that can be used as a scintillator and a laser dye. It has fluorescence at a wavelength of 375 nm. It can be used as a wavelength shifter in liquid samples due to their high quantum yield and large strokes shift.
Hazard
May cause irritation
Synthesis
The synthesis of 2,5-Diphenyloxazole is as follows:
In a 5000L enamel reactor with mechanical stirring and a thermometer, add benzoylaminoacetic acid (179 kg, 1 km) and thionyl chloride (238 kg, 2 km), react at 50°C, and monitor the sample until the compound is fully reacted. Unreacted thionyl chloride is distilled off to obtain benzoylaminoacetyl chloride. Cool down to 50°C, add benzene (780 kg, 10 kmol) to the reactor andAluminum trichloride (267 kg, 2 kmol), heated to reflux for 3 hours.The obtained N-benzoyl-ω-aminoacetophenone reaction solution was cooled to 30°C, 50 wt% sulfuric acid (392 kg, 2 kmol) was added, and the temperature was slowly raised to 100°C, and the reaction was completed at this temperature. Excess benzene was distilled off, the reaction solution was cooled to 30°C, water (1568 kg) was added dropwise to the reactor, and a white solid was precipitated, filtered, and rectified to obtain 2,5-diphenyloxazole of about 202 kg. The yield was 91.4%, the content was 99.3% (HPLC).
Purification Methods
Distil it in steam and crystallise it from ligroin. [Beilstein 27 III/IV 1437.]
2,5-Diphenyloxazole Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| GLR Innovations | +91 9891111994 | New Delhi, India | 4542 | 58 | Inquiry |
| SYNOVA CHEMICALS | +91-9920741772 +91-9920741772 | Mumbai, India | 428 | 58 | Inquiry |
| JAY CHEMICALS | +91-9819633090 +91-9819633090 | Maharashtra, India | 85 | 58 | Inquiry |
| JSK Chemicals | +919879767970 | Gujarat, India | 3756 | 58 | Inquiry |
| Otto Chemie Pvt Ltd | +91-2222070099 +91-2266382599 | Maharashtra, India | 429 | 58 | Inquiry |
| Rivashaa Agrotech Biopharma Pvt. Ltd. | +91-26463395 +91-7926462688 | Gujarat, India | 1615 | 58 | Inquiry |
| Molychem | 08048372666Ext 559 | Mumbai, India | 577 | 58 | Inquiry |
| Oceanic Pharmachem Pvt. Ltd. | 91-22-42128600 | Maharashtra, India | 2006 | 58 | Inquiry |
| VASIN BIO LIFE SCIENCES PVT LTD | 9491644688 | Hyderabad, India | 2096 | 58 | Inquiry |
| Loba Chemie Pvt., Ltd. | 91-22-66636663 | Maharashtra, India | 766 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| GLR Innovations | 58 |
| SYNOVA CHEMICALS | 58 |
| JAY CHEMICALS | 58 |
| JSK Chemicals | 58 |
| Otto Chemie Pvt Ltd | 58 |
| Rivashaa Agrotech Biopharma Pvt. Ltd. | 58 |
| Molychem | 58 |
| Oceanic Pharmachem Pvt. Ltd. | 58 |
| VASIN BIO LIFE SCIENCES PVT LTD | 58 |
| Loba Chemie Pvt., Ltd. | 58 |
92-71-7(2,5-Diphenyloxazole)Related Search:
1of4
chevron_right