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D210404

Sigma-Aldrich

2,5-Diphenyloxazole

99%, suitable for scintillation

Synonym(s):

DPO, PPO

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About This Item

Empirical Formula (Hill Notation):
C15H11NO
CAS Number:
92-71-7
Molecular Weight:
221.25
Beilstein/REAXYS Number:
157021
EC Number:
202-181-3
MDL number:
MFCD00005306
UNSPSC Code:
12352103
PubChem Substance ID:
24893626
NACRES:
NA.23

assay

99%

form

powder

bp

360 °C (lit.)

mp

72-74 °C (lit.)

λmax

303 nm

suitability

suitable for scintillation

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 (PPO) is an oxazole that can be used as a scintillator and a laser dye. It has fluorescence at a wavelength of 375 nm. It can be used as a wavelength shifter in liquid samples due to their high quantum yield and large strokes shift.

application

PPO can be used as a dopant that improves the photo-electric feedback of plastic scintillators which are used as radiation detectors for nuclear materials. It can be coated on peptide substrates to facilitate radioactive labelling which can enable determination of substrate specificity of lysine methyltransferase enzymes. It may also be used in the fabrication of organic luminescent materials which can be used in light emitting diodes (LEDs).

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)

Certificates of Analysis (COA)

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m-Terphenyl 99%

Sigma-Aldrich

T3009

m-Terphenyl

Synthesis and optical properties of highly luminescent phenyloxazole silane polymer.
Skorotetcky MS.
Mendeleev Communications, 27(4), 377-379 (2017)
Phase transition pattern of 2, 5-diphenyloxazole/γ-cyclodextrin (PPO/-CD) self-assembly.
Agnew KA
Journal of Photochemistry and Photobiology A: Chemistry, 91(3), 205-210 (1995)
Methacrylate based cross-linkers for improved thermomechanical properties and retention of radiation detection response in plastic scintillators.
Mahl A, et al.
Nucl. Instrum. Methods Phys. Res., Sect. A, 884(10), 113-118 (2018)
An optimized method using peptide arrays for the identification of in vitro substrates of lysine methyltransferase enzymes.
Rowe EM and Biggar KK
MethodsX, 5(10), 118-124 (2018)
J T Ahokas et al.
Pharmacology & toxicology, 61(3), 184-190 (1987-09-01)
The oxidative metabolism of 2,5-diphenyloxazole (PPO) is associated with 3-methylcholanthrene inducible cytochrome P-450. The major metabolite formed has m/z of 237, corresponding to hydroxylated PPO. All the possible hydroxylated metabolites of PPO were synthesized and characterized, enabling the assignment of
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