D4630
2,5-Diphenyloxazole
suitable for liquid scintillation spectrometry
Synonym(s):
DPO, PPO
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About This Item
Empirical Formula (Hill Notation):
C15H11NO
CAS Number:
Molecular Weight:
221.25
Beilstein:
157021
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
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form
powder
Quality Level
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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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 Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
386.6 - 393.8 °F - closed cup
Flash Point(C)
197 - 201 °C - closed cup
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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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)
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)
Study of new luminophores for use in modern scintillation cocktails
Janda J, et al.
Journal of Luminescence, 201, 390-396 (2018)
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
K Yamamoto et al.
Pharmaceutical research, 11(2), 331-336 (1994-02-01)
Molecular states of 2,5-diphenyloxazole (PPO) were investigated in ground mixtures with gamma-cyclodextrin (gamma-CD). Crystalline PPO gradually became amorphous upon grinding in the presence of gamma-CD. Solid-state fluorescence spectra of the ground mixtures showed that the fluorescence emission peak due to
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