Description

1,1-Diphenyl-2-Picrylhydrazine is a stable free radical compound, widely recognized as DPPH. Its primary commercial value lies in its reliable and quantifiable radical scavenging activity, making it an indispensable analytical standard. This compound is essential for industries and research institutions focused on evaluating the antioxidant capacity of materials. Key users include manufacturers in the food, cosmetic, and pharmaceutical sectors, as well as academic and quality control laboratories.

Application

• Antioxidant Capacity Assay: Serving as the standard reagent in the DPPH radical scavenging assay to measure the antioxidant activity of natural extracts, food additives, and cosmetic ingredients.
• Pharmaceutical Research: Used in drug discovery and development to screen and validate the free radical quenching properties of new chemical entities and formulations.
• Food & Beverage Quality Control: Employed to assess the oxidative stability and shelf-life of edible oils, nutritional supplements, and functional beverages.
• Cosmetic Science: Applied in testing the efficacy of anti-aging creams, serums, and other personal care products designed to protect against oxidative stress.
• Polymer & Material Science: Utilized as a radical source or inhibitor to study polymerization kinetics and the stabilization of plastics and rubbers.
• Academic & Teaching Laboratories: A fundamental tool for demonstrating principles of free radical chemistry and spectrophotometric analysis in educational settings.
• Reference Standard: Used for calibrating instruments and validating analytical methods in quality assurance protocols.

Basic Information

Product Name	1,1-Diphenyl-2-Picrylhydrazine
CAS No.	1707-75-1
Molecular Formula	C18H12N5O6
Molecular Weight	394.32 g/mol
Synonyms	DPPH; 2,2-Diphenyl-1-picrylhydrazyl; 1,1-Diphenyl-2-picrylhydrazyl; Diphenylpicrylhydrazyl; α,α-Diphenyl-β-picrylhydrazyl; Aldrich 257621; Free Radical (DPPH); DPPH Radical; Picrylhydrazyl Radical
EINECS	216-949-9

Quality Control

Our 1,1-Diphenyl-2-Picrylhydrazine is produced and tested under a strict quality management system. Each batch is analyzed to ensure high purity and consistent performance as a radical scavenging standard. We provide comprehensive Certificates of Analysis (COA) detailing purity, assay, and identification results. Our quality commitment ensures the material meets the stringent requirements for research and industrial analytical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at room temperature (15-25°C). Due to its light-sensitive nature, prolonged exposure to light should be avoided to maintain stability and efficacy.

Specification

Item	Specification
Appearance	Dark purple to black crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Melting Point	128°C - 132°C
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.