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D4630

Sigma-Aldrich

2,5-Diphenyloxazole

suitable for liquid scintillation spectrometry

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Synonym(s):
DPO, PPO
Empirical Formula (Hill Notation):
C15H11NO
CAS Number:
Molecular Weight:
221.25
Beilstein/REAXYS Number:
157021
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

form

powder

bp

360 °C (lit.)

mp

72-74 °C (lit.)

suitability

suitable for liquid scintillation spectrometry

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

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1 of 4

This Item
D210404915386E2531
vibrant-m

D4630

2,5-Diphenyloxazole

vibrant-m

D210404

2,5-Diphenyloxazole

form

powder

form

powder

form

solid

form

lyophilized powder

mp

72-74 °C (lit.)

mp

72-74 °C (lit.)

mp

-

mp

-

bp

360 °C (lit.)

bp

360 °C (lit.)

bp

-

bp

-

suitability

suitable for liquid scintillation spectrometry

suitability

-

suitability

-

suitability

-

General description

2,5-Diphenyloxazole (also known as PPO or p-phenylphenoxazole) is a fluorescent organic compound. It can be also used as an organic scintillator due to its high photoluminescence quantum yield and intriguing luminescent properties. It is widely used as a fluorescent probe or dye in analytical chemistry and biochemistry.

Application

2,5-Diphenyloxazole (PPO) can be used in:
  • fluorography techniques for the detection of tritium, tritiated glycopeptides, and 35S labeled proteins.
  • liquid scintillation cocktails as primary and secondary fluors.

related product

Product No.
Description
Pricing

Storage Class

11 - Combustible Solids

wgk_germany

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)


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Wavelength dependant quenching of 2, 5-diphenyloxazole fluorescence by nucleotides
KrishnaMurthy NV, et al.
Journal of Fluorescence, 18, 29-34 (2008)
Study of new luminophores for use in modern scintillation cocktails
Janda J, et al.
Journal of Luminescence, 201, 390-396 (2018)
Two-component molecular materials of 2, 5-diphenyloxazole exhibiting tunable ultraviolet/blue polarized emission, pump-enhanced luminescence, and mechanochromic response
Yan, et al.
Advanced Functional Materials , 24, 587-594 (2014)
H J Meyer et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 6(15), 2809-2817 (2000-09-14)
Spectral and time-resolved fluorescence properties as well as relative fluorescence quantum yields of carbodiimide derivatives of 2.5-diphenyloxazole (PPO) (prepared by H2S elimination from the corresponding thioureas), of some intermediates in the preparation, and of several other PPO derivatives were investigated
Olivier Braem et al.
Physical chemistry chemical physics : PCCP, 14(10), 3513-3519 (2012-02-07)
We present a femtosecond broad-band fluorescence up-conversion study of the vibrational relaxation dynamics of two UV chromophores, 2,5-diphenyloxazole (PPO) and para-terphenyl (pTP), pumped with a large excess of vibrational energy (>2000 cm(-1)). The band narrowing of the transient fluorescence spectrum

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