Description

2,4-Dinitrophenylhydrazine Hydrochloride is a high-purity chemical derivative of 2,4-dinitrophenylhydrazine (2,4-DNPH), widely recognized as a key derivatizing agent for carbonyl analysis. This compound is essential for the sensitive and selective detection, identification, and quantification of aldehydes and ketones in complex matrices. It is a critical reagent for analytical chemists and quality control laboratories across the pharmaceutical, environmental, food and beverage, and industrial chemical sectors.

Application

• Carbonyl Compound Analysis: Primary reagent for derivatizing aldehydes and ketones (e.g., formaldehyde, acetaldehyde) for analysis by HPLC, GC, or spectrophotometry.
• Environmental Monitoring: Detection and quantification of airborne carbonyl pollutants and volatile organic compounds (VOCs) in environmental samples.
• Food & Beverage Safety: Analysis of off-flavors, spoilage markers, and process contaminants like Strecker aldehydes or lipid oxidation products.
• Pharmaceutical QC/QA: Impurity profiling and stability testing of drug substances and products for reactive carbonyl impurities.
• Polymer & Material Science: Monitoring degradation products (e.g., from oxidation or thermal breakdown) in plastics and synthetic materials.
• Academic & Industrial Research: Fundamental research tool in organic synthesis and mechanistic studies involving carbonyl chemistry.

Basic Information

Product Name	2,4-Dinitrophenylhydrazine Hydrochloride
CAS No.	55907-61-4
Molecular Formula	C6H6N4O4 • HCl
Molecular Weight	234.60 g/mol (Free base: 198.14)
Synonyms	2,4-DNPH Hydrochloride; 2,4-Dinitrophenylhydrazine HCl; (2,4-Dinitrophenyl)hydrazine Hydrochloride; Brady's Reagent Hydrochloride; DNPH Hydrochloride; DNPH-HCl; 1-Hydrazino-2,4-dinitrobenzene Hydrochloride; 2,4-Dinitro-1-phenylhydrazine Hydrochloride
EINECS	Contact for details

Quality Control

Our 2,4-Dinitrophenylhydrazine Hydrochloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity, consistent performance, and compliance with industry standards. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

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 product is hygroscopic (moisture-sensitive) and light-sensitive; ensure containers are sealed immediately after use to minimize exposure to atmospheric moisture and light.

Specification

Item	Specification
Appearance	Orange to red crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Decomposes >200°C
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Solubility	Soluble in methanol, ethanol; slightly soluble in water

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