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

Description

CAS: 1898-66-4 | C₁₈H₁₂N₅O₆

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.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Specifications

Chemical Identifiers

• CAS: 1898-66-4
• Molecular Formula: C₁₈H₁₂N₅O₆
• MDL Number: MFCD00007231
• Synonym: DPPH

• Color: Black to Green
• Quantity: 250 mg
• Merck Index: 14,3330
• Solubility Information: Soluble in dimethyl formamide,ethanol,chloroform,ether,carbon disulfinde,acetone,oils,carbon tetrachloride,glacial acetic acid and toluene. Insoluble in water.
• Formula Weight: 394.32
• Percent Purity: 95%
• Physical Form: Powder
• Chemical Name or Material: 2,2-Diphenyl-1-picrylhydrazyl (free radical)

Safety and Handling

Hazard Category	H317-H334
Hazard Statement	GHS H Statement H334-H317 May cause allergy or asthma symptoms or breathing difficulties if inhaled. May cause an allergic skin reaction.
Precautionary Statement	P261-P272-P280g-P285-P302+P352-P304+P341-P333+P313-P342+P311-P363-P501c
EINECSNumber	217-591-8
RTECSNumber	MW3250000
TSCA	Yes
Recommended Storage	Keep cold

SDS

RUO – Research Use Only