2,2-Diphenyl-1-picrylhydrazyl (free radical), 95% (DPPH), ALFA AESAR by THERMO (CAS NO: 1898-66-4)

รหัสสินค้า : 044150

Chemical Identifiers

CAS: 1898-66-4

IUPAC Name: 1,1-diphenyl-2-(2,4,6-trinitrophenyl)hydrazine

Molecular Formula: C18H13N5O6

InChI Key: WCBPJVKVIMMEQC-UHFFFAOYSA-N

SMILES: [O-][N+](=O)C1=CC(=C(NN(C2=CC=CC=C2)C2=CC=CC=C2)C(=C1)[N+]([O-])=O)[N+]([O-])=O

Molecular Weight (g/mol): 395.33

Synonym: DPPH

Specifications

Form: Powder

Appearance (Color): Green to black

Assay (unspecified): ≥90.0% ( Elemental analysis or HPLC)

Description

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.