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D4630

Sigma-Aldrich

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:
92-71-7
Molecular Weight:
221.25
Beilstein:
157021
EC Number:
202-181-3
MDL number:
MFCD00005306
UNSPSC Code:
12352100
PubChem Substance ID:
24893888
NACRES:
NA.22

form

powder

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.

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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Certificates of Analysis (COA)

Lot/Batch Number
SLCR1805
0000439940
0000439940
SLCR6354
SLCR0384

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