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D9132

Sigma-Aldrich

2,2-Diphenyl-1-picrylhydrazyl

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Synonym(s):
1,1-Diphenyl-2-picrylhydrazyl radical, 2,2-Diphenyl-1-(2,4,6-trinitrophenyl)hydrazyl, DPPH
Empirical Formula (Hill Notation):
C18H12N5O6
CAS Number:
Molecular Weight:
394.32
Beilstein/REAXYS Number:
1846081
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

form

powder

Quality Level

color

green

mp

~135 °C (dec.) (lit.)

storage temp.

2-8°C

SMILES string

[O-][N+](=O)c1cc(c([N]N(c2ccccc2)c3ccccc3)c(c1)[N+]([O-])=O)[N+]([O-])=O

InChI

1S/C18H12N5O6/c24-21(25)15-11-16(22(26)27)18(17(12-15)23(28)29)19-20(13-7-3-1-4-8-13)14-9-5-2-6-10-14/h1-12H

InChI key

HHEAADYXPMHMCT-UHFFFAOYSA-N

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1 of 4

This Item
D199303P2410167334
2,2-Diphenyl-1-picrylhydrazyl

D9132

2,2-Diphenyl-1-picrylhydrazyl

2,4-Dinitrophenylhydrazine reagent grade, 97%

D199303

2,4-Dinitrophenylhydrazine

Diphenyl ether ReagentPlus®, 99%

P24101

Diphenyl ether

Diphenyl ether Selectophore™, ≥99.9%

67334

Diphenyl ether

form

powder

form

-

form

crystals

form

solid

mp

~135 °C (dec.) (lit.)

mp

197-200 °C (lit.)

mp

25-27 °C (lit.)

mp

25-27 °C (lit.), 27-29 °C

storage temp.

2-8°C

storage temp.

-

storage temp.

-

storage temp.

-

color

green

color

-

color

-

color

-

General description

2,2-diphenyl-1-picrylhydrazyl is a free radical, which shows hydrogen acceptor ability towards antioxidants. Hence, it is commonly used in DPPH assay for measuring the antioxidant activity of different natural samples such as wine, fruits, herbal tea etc.

Other Notes

Free radical

related product

Product No.
Description
Pricing

signalword

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Resp. Sens. 1 - Self-react. C - Skin Irrit. 2 - Skin Sens. 1

Storage Class

4.1A - Other explosive hazardous materials

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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Determination of in vitro antidiabetic effects, antioxidant activities and phenol contents of some herbal teas.
Buyukbalci A and Sedef Nehir El.
Plant Foods For Human Nutrition, 63(1), 27-33 (2008)
Influence of solvent composition on antioxidant potential of model polyphenols and red wines determined with 2, 2-diphenyl-1-picrylhydrazyl.
Bertalanic L, et al.
Journal of Agricultural and Food Chemistry, 60(50), 12282-12288 (2012)
Studies on the antioxidants. XIII. Hydrogen donating capability of antioxidants to 2, 2-diphenyl-1-picrylhydrazyl.
KuREcHI T, et al.
Chemical & Pharmaceutical Bulletin, 28(7), 2089-2093 (1980)
Jiahao Huang et al.
Pharmaceutics, 11(4) (2019-04-17)
Phyto-phospholipid complexes have been developed as a common way of improving the oral bioavailability of poorly absorbable phyto-pharmaceuticals; however, the complexation with phospholipids can induce positive or negative effects on the bioaccessibility of such plant-derived active ingredients in different parts
Višnja Stepanić et al.
Antioxidants (Basel, Switzerland), 8(4) (2019-04-10)
Chalcones are polyphenolic secondary metabolites of plants, many of which have antioxidant activity. Herein, a set of 26 synthetic chalcone derivatives with alkyl substituted pyrazine heterocycle A and four types of the monophenolic ring B, were evaluated for the potential

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