2,5-Diphenyloxazole 2,5-Diphenyloxazole
Structural formula
| Business number | 0253 |
|---|---|
| Molecular formula | C15H11NO |
| Molecular weight | 221.25 |
| label |
2,5-diphenyl-1,3-oxazepine 2,5-diphenylazole |
Numbering system
CAS number:92-71-7
MDL number:MFCD00005306
EINECS number:202-181-3
RTECS number:RP6825000
BRN number:157021
PubChem number:24893888
Physical property data
1. Character:Acicular crystals. Can evaporate slightly with water vapor.
2. Density (g/mL,25/4℃)：1.0940
3. Relative vapor density (g/mL,AIR=1): Undetermined
4. Melting point (ºC): 74
5. Boiling point (ºC,Normal pressure):360
6. Boiling point (ºC, 94.7kpa): Undetermined
7. Refractive index:1.6231
8. Flash Point (ºC): ＞150
9. Specific optical rotation (º): Undetermined
10. Autoignition point or ignition temperature (ºC): Undetermined
11. Vapor pressure (kPa,25ºC): Undetermined
12. isotonic specific volume (90.2K)：502.1
4. Surface Tension (dyne/cm):43.0
5. Polarizability（10-24cm3): 26.09
Compute chemical data
1. Reference value for hydrophobic parameter calculation (XlogP): None
2. Number of hydrogen bond donors: 0
3. Number of hydrogen bond acceptors: 2
4. Number of rotatable chemical bonds: 2
5. Number of tautomers: none
6. Topological molecule polar surface area 26
7. Number of heavy atoms: 17
8. Surface charge: 0
9. Complexity: 231
10. Number of isotope atoms: 0
11. Determine the number of atomic stereocenters: 0
12. Uncertain number of atomic stereocenters: 0
13. Determine the number of chemical bond stereocenters: 0
14. Number of uncertain chemical bond stereocenters: 0
15. Number of covalent bond units: 1
Properties and stability
None
Storage method
This product should be sealed and stored in a cool place.
Synthesis method
will1gBenzoylaminobenzene Ethyl ketone is dissolved in5mlin sulfuric acid, heated over a water bath2min, pour into water, colorless crystals precipitate. Filter, there is petroleum ether (boiling range50-70℃) recrystallized to get2,5-Diphenyloxazole.
Purpose
Scintillation reagent.
tyle=”FONT-SIZE: 9pt; COLOR: #333333; FONT-FAMILY: 宋体; mso-ascii-font-family: ‘Times New Roman'”>℃) recrystallized to get2,5-Diphenyloxazole.
Purpose
Scintillation reagent.