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257621

Sigma-Aldrich

2,2-Di(4-tert-octylphenyl)-1-picrylhydrazyl, free radical

Sinonimo/i:

2,2-Bis[4-(1,1,3,3-tetramethylbutyl)phenyl]-1-(2,4,6-trinitrophenyl)hydrazinyl, 2,2-Di(4-tert-octylphenyl)-1-picrylhydrazyl, DPPH

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About This Item

Formula empirica (notazione di Hill):
C34H44N5O6
Numero CAS:
84077-81-6
Peso molecolare:
618.74
Numero MDL:
MFCD00012032
Codice UNSPSC:
12352005
ID PubChem:
24855599
NACRES:
NA.22

Forma fisica

solid

Livello qualitativo

100

Punto di fusione

171 °C (dec.) (lit.)

λmax

531 nm

Temperatura di conservazione

2-8°C

Stringa SMILE

CC(C)(C)CC(C)(C)c1ccc(cc1)N([N]c2c(cc(cc2[N+]([O-])=O)[N+]([O-])=O)[N+]([O-])=O)c3ccc(cc3)C(C)(C)CC(C)(C)C

InChI

1S/C34H44N5O6/c1-31(2,3)21-33(7,8)23-11-15-25(16-12-23)36(26-17-13-24(14-18-26)34(9,10)22-32(4,5)6)35-30-28(38(42)43)19-27(37(40)41)20-29(30)39(44)45/h11-20H,21-22H2,1-10H3
CLOCMRDQPYXVKP-UHFFFAOYSA-N

Descrizione generale

2,2-Di(4-tert-octylphenyl)-1-picrylhydrazyl (DPPH) is classified as a “stable” free radical since it has a long shelf life and can be synthesized and stored under normal laboratory conditions.

Applicazioni

2,2-Di(4-tert-octylphenyl)-1-picrylhydrazyl can be used as a calibration standard in electron paramagnetic spectroscopy (EPR) and as a radical scavenger in polymers. It is also used as an efficient reagent in the “DPPH calorimetric assay” to study radical scavenging activities of diverse chemical compounds, mostly of phenolic nature. When DDPF reacts with antioxidant molecules, its color changes from deep purple to pale yellow, which allows the spectrophotometric determination of the antioxidant activity.

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

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Certificati d'analisi (COA)

Lot/Batch Number
MKCN1802
MKCN0676
MKBS3069V
MKBJ7140V
MKBJ0432V

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