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44150 2,2-Diphenyl-1-picrylhydrazyl (free radical), 95%

CAS Number
1898-66-4
Synonyms
DPPH

Stock No. Size Price ($) Quantity Availability
44150-MD 250mg 32.60
44150-03 1g 100.00
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2,2-Diphenyl-1-picrylhydrazyl (free radical), 95%

MDL
MFCD00007231
EINECS
217-591-8

Chemical Properties

Formula
C18H12N5O6
Formula Weight
394.32
Form
Powder
Storage & Sensitivity
Keep Cold.
Solubility
Soluble in dimethyl formamide, ethanol, chloroform, ether, carbon disulfinde, acetone, oils, carbon tetrachloride, glacial acetic acid and toluene. Insoluble in water.

Applications

2,2-Diphenyl-1-picrylhydrazyl is used as a sensitive colorimetric free radical scavenger. It serves as a general antioxidant detector. It is utilized to monitor chemical reactions involving radicals as well as a standard of the position and intensity of electron paramagnetic resonance signals. Further, it is employed in the quantitative determination of aliphatic and aromatic thiols by indirect spectroscopy and for photometric determination of tocopherol.

Notes

Store in a cool place. Incompatible with oxidizing agents and strong bases.

Literature References

Nakanishi, I.; Ohkubo, K.; Imai, K.; Kamibayashi, M.; Yoshihashi, Y.; Matsumoto, K.; Fukuhara, K.; Terada, K.; Itoh, S.; Ozawa, T. Solubilisation of a 2,2-diphenyl-1-picrylhydrazyl radical in water by beta-cyclodextrin to evaluate the radical-scavenging activity of antioxidants in aqueous media. Chem. Commun. 2015, 51, 8311-8314.

Volkov, V. A.; Misin, V. M. Kinetics of reactions of antioxidants from some food and medicinal plants with the stable radical 2,2-diphenyl-1-picrylhydrazyl. Kinet. Catal. 2015, 56 (1), 43-48.

GHS Hazard and Precautionary Statements

Hazard Statements: H334-H317

May cause allergy or asthma symptoms or breathing difficulties if inhaled. May cause an allergic skin reaction.

Precautionary Statements: P284-P261-P280g-P342+P311a-P363-P501a

Wear respiratory protection. Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves. If experiencing respiratory symptoms: Call a POISON CENTER/doctor. Wash contaminated clothing before reuse. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Merck
14,3330
Harmonized Tariff Code
2928.00
TSCA
Yes
RTECS
MW3250000

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