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257621

Sigma-Aldrich

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

Synonyme(s) :

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

Formule empirique (notation de Hill):
C34H44N5O6
Numéro CAS:
84077-81-6
Poids moléculaire :
618.74
Numéro MDL:
MFCD00012032
Code UNSPSC :
12352005
ID de substance PubChem :
24855599
Nomenclature NACRES :
NA.22

Forme

solid

Niveau de qualité

100

Pf

171 °C (dec.) (lit.)

λmax

531 nm

Température de stockage

2-8°C

Chaîne SMILES 

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

Clé InChI

CLOCMRDQPYXVKP-UHFFFAOYSA-N

Description générale

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.

Application

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.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

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Certificats d'analyse (COA)

Lot/Batch Number
MKCN1802
MKCN0676
MKBS3069V
MKBJ7140V
MKBJ0432V

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Ramona Figat et al.
Molecules (Basel, Switzerland), 25(5) (2020-03-04)
Traditional medicinal plants are an important source of active compounds with potential antimutagenic activity. Polyscias filicifolia Bailey (Araliaceae) is a South Asian traditional herb used as an adaptogenic and cardiac drug. Extracts of P. filicifolia contain a wide range of
Joaquín Navarro Del Hierro et al.
Food chemistry, 309, 125742-125742 (2019-11-11)
Extracts from the edible insects Acheta domesticus and Tenebrio molitor were obtained by ultrasound-assisted extraction (UAE) and pressurized-liquid extraction (PLE) using ethanol (E) or ethanol:water (E:W). Characterization by GC-MS was performed and total phenolic compounds (TPC), antioxidant activity (DPPH) and
Jian-Xin Diao et al.
Chinese journal of integrative medicine, 26(10), 736-744 (2019-11-27)
To investigate the phenolic composition, antioxidant properties, and hepatoprotective mechanisms of polyphenols from green tea extract (GTP) in carbon tetrachloride (CCl4)-induced acute liver injury mouse model. High-performance liquid chromatography was used to analyze the chemical composition of the extract. Antioxidant
Konrad A Szychowski et al.
Pesticide biochemistry and physiology, 168, 104638-104638 (2020-07-28)
Triclosan (TCS) is commonly used worldwide in a range of personal care and sanitizing products. A number of studies have revealed the presence of TCS in human tissues. It has recently been shown that TCS can interact with AhR in
Azis Boing Sitanggang et al.
Journal of food science and technology, 57(12), 4660-4670 (2020-10-23)
The influences of coagulation conditions on the characteristics of tofu have been investigated by many studies, with limited perspectives on the utilization of organic acid coagulants. Hence, this research aimed to study the psychochemical and functional properties of tofu coagulated

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