Description

2,2-Di(4-tert-Octylphenyl)-1-Picrylhydrazyl, Free Radical is a stable, nitroxide-based free radical compound widely used as a standard and reagent in analytical chemistry. Its primary value lies in its reliable and quantifiable radical scavenging activity, making it an essential tool for measuring antioxidant capacity. This product is critical for researchers and quality control laboratories in the polymer, food science, and pharmaceutical industries who require precise free radical analysis.

Application

• Antioxidant Capacity Assays: Serving as the standard radical source in the DPPH (2,2-Diphenyl-1-picrylhydrazyl) assay for evaluating the free radical scavenging activity of natural extracts, food additives, and pharmaceutical compounds.
• Polymer Science Research: Used as a radical trap or spin label to study polymerization kinetics, monitor degradation processes, and assess the effectiveness of stabilizers in plastics and coatings.
• Pharmaceutical R&D: Employed in vitro studies to screen and validate the radical scavenging potential of new drug candidates and nutraceuticals.
• Cosmetic Ingredient Testing: Applied to measure the anti-aging and protective efficacy of cosmetic formulations by quantifying their ability to neutralize free radicals.
• Educational & Reference Standard: Utilized in academic and industrial laboratories as a high-purity calibration standard for spectroscopic methods like Electron Spin Resonance (ESR).
• Material Stability Studies: Acting as a probe to investigate the oxidative stability and shelf-life of fuels, lubricants, and other industrial materials.

Basic Information

Product Name	2,2-Di(4-tert-Octylphenyl)-1-Picrylhydrazyl, Free Radical
CAS No.	84077-81-6
Molecular Formula	C46H60N5O6
Molecular Weight	778.99 g/mol
Synonyms	2,2-Di(4-(1,1,3,3-Tetramethylbutyl)phenyl)-1-picrylhydrazyl; DOPPH; tert-Octyl-DPPH; 2,2-Di(4-tert-octylphenyl)-1-(2,4,6-trinitrophenyl)hydrazyl; Free Radical VI; 1,1-Diphenyl-2-picrylhydrazyl derivative; Stable Nitroxide Radical; Antioxidant Assay Standard
EINECS	Contact for details

Quality Control

Every batch of our 2,2-Di(4-tert-Octylphenyl)-1-Picrylhydrazyl, Free Radical is manufactured and tested under strict quality management systems. We ensure high purity and consistent radical activity suitable for analytical and research applications. Comprehensive Certificates of Analysis (COA) detailing assay, purity, and spectroscopic identity are provided to guarantee reliable performance in your critical assays.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This material is light-sensitive (store away from light). Keep container tightly sealed in a dry environment to prevent moisture absorption and maintain stability.

Specification

Item	Specification
Appearance	Dark purple to black crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Radical Purity (ESR)	≥ 95.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.