343631-07-2

Basic information

• Product Name: 2-(2,4,6-trifluorophenyl)-1,3-benzoxazole
• CAS NO: 343631-07-2
• Molecular Formula: C₁₃H₆F₃NO
• Molecular Weight: 249.188
• Mol File: 343631-07-2.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 277.315°C at 760 mmHg
• Flash Point: 121.516°C
• Density: 1.404g/cm³
• Vapor Pressure: 0.008mmHg at 25°C
• Refractive Index: 1.58
• CAS DataBase Reference: 2-(2,4,6-trifluorophenyl)-1,3-benzoxazole(CAS DataBase Reference)
• NIST Chemistry Reference: 2-(2,4,6-trifluorophenyl)-1,3-benzoxazole(343631-07-2)
• EPA Substance Registry System: 2-(2,4,6-trifluorophenyl)-1,3-benzoxazole(343631-07-2)

Safety Data

• Hazardous Substances Data: 343631-07-2(Hazardous Substances Data)

Upstream product

• 28314-80-9 2,4,6-trifluorobenzoic acid 
• 95-55-6 2-amino-phenol 

Relevant articles and documents

Solvent- and concentration-sensitive fluorescence of 2-(3,4,5,6-tetrafluoro-2-hydroxyphenyl)benzoxazole

2-(3,4,5,6-Tetrafluoro-2-hydroxyphenyl)benzoxazole (2) emits the long wavelength fluorescence around 500 nm in nonpolar solvent via the intramolecular proton transfer process in the excited state of 2 (enolform) and also emits the intermediate wavelength fluorescence around 440 nm in polar solvent, which is assumed to originate from the excited state of 2 (anion). The ease of formation of 2 (anion), compared to 2-(2-hydroxyphenyl)benzoxazole (1), is explained by the strongly inductive fluorine atoms. In a solvent with the intermediate polarity, 2 emits both fluorescences and their relative intensity is dependent on the concentration of 2, which is supposed to be caused by the high sensitivity of the intermediate wavelength emission to the concentration quenching.