Description

2,4-Dinitrophenylhydrazine is a versatile and highly reactive organic compound primarily used as a derivatizing agent for the qualitative and quantitative analysis of carbonyl compounds. Its value lies in its ability to form brightly colored, crystalline derivatives (2,4-dinitrophenylhydrazones) that are easily isolated and characterized. This makes it an indispensable reagent for analytical chemists and quality control laboratories across the pharmaceutical, food, and environmental sectors.

Application

• Carbonyl Compound Analysis: Primary reagent for the detection, identification, and quantification of aldehydes and ketones via derivatization in HPLC, TLC, and spectrophotometric methods.
• Pharmaceutical QC: Used in impurity profiling and stability testing of drug substances and products to monitor carbonyl-containing degradation products.
• Food & Flavor Industry: Employed in the analysis of flavor compounds, spoilage indicators (like rancidity in fats and oils), and food additives.
• Environmental Monitoring: Applied in air and water quality testing to detect and measure volatile organic compounds (VOCs) such as formaldehyde and acetaldehyde.
• Academic & Research Laboratories: Essential for organic synthesis, teaching laboratory experiments on carbonyl chemistry, and research into reaction mechanisms.
• Polymer & Material Science: Used to analyze carbonyl end-groups in polymers and to study oxidation and degradation processes in materials.

Basic Information

Product Name	2,4-Dinitrophenylhydrazine
CAS No.	119-26-6
Molecular Formula	C6H6N4O4
Molecular Weight	198.14 g/mol
Synonyms	2,4-DNPH; 2,4-Dinitrophenylhydrazide; Brady's Reagent; (2,4-Dinitrophenyl)hydrazine; DNPH; Dinitrophenylhydrazine; 1-Hydrazino-2,4-dinitrobenzene; 2,4-Dinitrobenzenephenylhydrazine
EINECS	204-309-3

Quality Control

Our 2,4-Dinitrophenylhydrazine is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for sensitive analytical applications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). This material is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). Keep away from heat, sparks, open flames, and incompatible materials.

Specification

Item	Specification
Appearance	Orange to red crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	198°C - 202°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Solubility (in Acetonitrile)	Clear, orange solution

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