Names | |
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Preferred IUPAC name
2,2-Diphenyl-1-(2,4,6-trinitrophenyl)hydrazin-1-yl | |
Other names
2,2-Diphenyl-1-picrylhydrazyl
1,1-Diphenyl-2-picrylhydrazyl radical 2,2-Diphenyl-1-(2,4,6-trinitrophenyl)hydrazyl Diphenylpicrylhydrazyl | |
Identifiers | |
3D model (JSmol)
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Abbreviations | DPPH |
ChemSpider | |
ECHA InfoCard | 100.015.993 |
PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
C18H12N5O6 | |
Molar mass | 394.32 g/mol |
Appearance | Black to green powder, purple in solution |
Density | 1.4 g/cm3 |
Melting point | 135 °C (275 °F; 408 K) (decomposes) |
insoluble | |
Solubility in methanol | 10 mg/mL |
Hazards | |
NFPA 704 (fire diamond) | |
Safety data sheet (SDS) | MSDS |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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DPPH is a common abbreviation for the organic chemical compound 2,2-diphenyl-1-picrylhydrazyl. It is a dark-colored crystalline powder composed of stable free radical molecules. DPPH has two major applications, both in laboratory research: one is a monitor of chemical reactions involving radicals, most notably it is a common antioxidant assay,[1] and another is a standard of the position and intensity of electron paramagnetic resonance signals.