2,5-Diphenyloxazole 2,5-Diphenyloxazole

Structural formula

• Numbering system
• Physical property data
• Toxicological data
• Ecological data
• Molecular structure data
• Computing chemical data
• More
  • Properties and Stability
  • Storage method
  • Synthesis method
  • Purpose

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.