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Merck
CN

P3754

1,4-Bis(5-phenyl-2-oxazolyl)benzene

BioReagent, suitable for scintillation

Synonym(s):

1,4-Bis(5-phenyl-2-oxazolyl)benzene, 2,2′-p-Phenylene-bis(5-phenyloxazole), Di(phenyl-5-oxazolyl-2)-1,4-benzene, POPOP

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About This Item

Empirical Formula (Hill Notation):
C24H16N2O2
CAS Number:
1806-34-4
Molecular Weight:
364.40
UNSPSC Code:
41116105
NACRES:
NA.32
PubChem Substance ID:
24898445
EC Number:
217-304-6
Beilstein/REAXYS Number:
325741
MDL number:
MFCD00005309

Key Documents

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InChI

1S/C24H16N2O2/c1-3-7-17(8-4-1)21-15-25-23(27-21)19-11-13-20(14-12-19)24-26-16-22(28-24)18-9-5-2-6-10-18/h1-16H

InChI key

MASVCBBIUQRUKL-UHFFFAOYSA-N

SMILES string

c1ccc(cc1)-c2cnc(o2)-c3ccc(cc3)-c4ncc(o4)-c5ccccc5

product line

BioReagent

form

powder

Quality Level

200

suitability

suitable for scintillation

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General description

1,4-Bis(5-phenyl-2-oxazolyl) benzene, also known as POPOP, is a well-known scintillation luminophore. It is an efficient fluorescent organic compound with high stokes shift. The POPOP dye is photostable in polar protic and polar aprotic solvents. The resulting photochemical quantum yield and the photodecomposition rate depend on the solvent′s electron affinity.

Application

1,4-Bis(5-phenyl-2-oxazolyl) benzene or POPOP is widely used to detect radioactivity by scintillation counting.

Features and Benefits

1,4-Bis(5-phenyl-2-oxazolyl) benzene or POPOP has the following advantages:

  • High fluorescence quantum yield.
  • High molar absorptivity.
  • Large Stokes Shift.
  • High Photostability in most organic solvents.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H302,H319

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000507752
0000507751
0000507752
0000507751
0000505595

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Juliana Oliveira et al.
ACS applied materials & interfaces, 10(15), 12904-12912 (2018-03-28)
Organic photodetectors (PDs) based on printing technologies will allow to expand the current field of PD applications toward large-area and flexible applications in areas such as medical imaging, security, and quality control, among others. Inkjet printing is a powerful digital
Xiaohui Hou et al.
Analytical biochemistry, 368(1), 100-110 (2007-06-15)
In this study, micron-sized poly(styrene-co-glycidyl methacrylate) (PSt-GMA) fluorescent microspheres of 5.1microm in diameter were synthesized via dispersion polymerization of styrene and glycidyl methacrylate in the presence of 1,4-bis(5-phenyloxazol-2-yl) benzene (POPOP), which provided surface functional groups for covalent immobilization of enzymes.
N S Kudryasheva et al.
Luminescence : the journal of biological and chemical luminescence, 16(3), 243-246 (2001-06-16)
The involvement of upper electron-excited states in bacterial bioluminescence process was studied with excitation energy-accepting molecules. The fluorescent aromatic compounds, anthracene and 1.4-bis(5-phenyloxazol-2-yl)benzene, were chosen. Energies of their lowest excited singlet states are higher than the energy of the analogous
Kadir Aslan et al.
Analytical chemistry, 80(19), 7304-7312 (2008-09-04)
The use of zinc thin films deposited onto glass supports for surface plasmon coupled fluorescence (SPCF) over a broad 200 nm wavelength range is demonstrated. Fresnel calculations performed in the ultraviolet and visible spectral range are predicted to generate surface
J Hedstrom et al.
Biochemistry, 27(17), 6203-6208 (1988-08-23)
Measurements of homogeneous and heterogeneous fluorescence intensity decays using a hybrid time-correlated single photon counting/multifrequency phase fluorometer are reported. A trio of fluorophores exhibiting a range of decay profiles was selected. p-Terphenyl, 1,4-bis[2-(4-methyl-5-phenyloxazolyl)]benzene [(Me)2POPOP], and p-bis[2-(5-phenyloxazolyl)]benzene (POPOP), commonly used reference
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