MilliporeSigma
All Photos(5)

Documents

P3754

Sigma-Aldrich

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

BioReagent, suitable for scintillation

Sign Into View Organizational & Contract Pricing

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
Empirical Formula (Hill Notation):
C24H16N2O2
CAS Number:
Molecular Weight:
364.40
Beilstein/REAXYS Number:
325741
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.32

product line

BioReagent

Quality Level

form

powder

mp

242-246 °C (lit.)

suitability

suitable for scintillation

SMILES string

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

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

Looking for similar products? Visit Product Comparison Guide

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.

related product

Product No.
Description
Pricing

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

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
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
[A method for the recovery of dioxane, naphthalene, PPO and POPOP from used scintillation solutions].
G Merkel et al.
Zeitschrift fur medizinische Laboratoriumsdiagnostik, 28(5), 279-279 (1987-01-01)
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
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.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service