POPOP

Names
Preferred IUPAC name

2,2′-(1,4-Phenylene)bis(5-phenyl-1,3-oxazole)

Other names

POPOP

Identifiers

CAS Number

* 1806-34-4 Y

3D model (JSmol)

* Interactive image

ChEBI |

* CHEBI:52236 N

ChemSpider |

* 14960 N

EC Number |

* 217-304-6

PubChem CID

* 15732

UNII |

* MDI740G2Q0 Y

InChI

* 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 N

Key: MASVCBBIUQRUKL-UHFFFAOYSA-N N

* InChI=1/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

Key: MASVCBBIUQRUKL-UHFFFAOYAO

SMILES

* C1=CC=C(C=C1)C2=CN=C(O2)C3=CC=C(C=C3)C4=NC=C(O4)C5=CC=CC=C5

Properties

Chemical formula

| C24H16N2O2
Molar mass | 364.40 g/mol

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

N verify (what is YN ?)
Infobox references

Tracking categories (test):

* SizeSet

POPOP or 1,4-bis(5-phenyloxazol-2-yl) benzene is a scintillator. It is used as a wavelength shifter (also called a "secondary scintillator"), which means that it converts shorter wavelength light to longer wavelength light. Its output spectrum peaks at 410 nm, which is violet.[1] POPOP is used in both solid and liquid organic scintillators.

## References

1. ↑ Mechanism of Liquid Scintillation Counting, National Diagnostics, retrieved 24 Sept 2007

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*[CID]: Compound ID