Description

Dnpp CAS NO 118-95-6 is a specialized chemical compound, specifically 2,4-Dinitrophenylhydrazine, widely recognized as a key derivatization reagent in analytical chemistry. Its primary value lies in its exceptional reactivity with carbonyl groups, enabling the sensitive detection, identification, and quantification of aldehydes and ketones. This makes it an indispensable tool for quality control laboratories, research institutions, and industrial manufacturers requiring precise analytical methods.

Application

• Carbonyl Compound Analysis: As a derivatizing agent for the qualitative and quantitative HPLC or spectrophotometric analysis of aldehydes and ketones in various matrices.
• Pharmaceutical QC: Used in impurity profiling and stability testing to monitor carbonyl-containing degradation products in active pharmaceutical ingredients (APIs) and finished drug products.
• Food & Flavor Industry: Employed in the analysis of flavor compounds, spoilage indicators (like rancidity), and contaminants that contain carbonyl functional groups.
• Environmental Monitoring: Applied in the detection of airborne carbonyl pollutants, such as formaldehyde and acetaldehyde, in environmental and industrial hygiene samples.
• Polymer & Material Science: Utilized to study oxidation products and degradation pathways in polymers and coatings by analyzing generated carbonyl species.
• Academic & Research Laboratories: Serves as a fundamental reagent in organic synthesis and teaching laboratories for characterizing unknown carbonyl compounds via derivative formation.

Basic Information

Product Name	Dnpp
CAS No.	118-95-6
Molecular Formula	C6H6N4O4
Molecular Weight	198.14 g/mol
Synonyms	2,4-Dinitrophenylhydrazine; DNPH; Brady's Reagent; 2,4-DNPH; (2,4-Dinitrophenyl)hydrazine; Dinitrophenylhydrazine; 2,4-Dinitro-phenylhydrazine; 1-Hydrazino-2,4-dinitrobenzene
EINECS	204-295-8

Quality Control

Our Dnpp is manufactured under strict quality management protocols to ensure batch-to-batch consistency and high reactivity. We offer grades suitable for analytical applications, with typical purity levels meeting or exceeding industry standards. Certificates of Analysis (COA) detailing assay, impurity profile, and performance characteristics are provided with each shipment to support your quality assurance and regulatory compliance needs.

Storage

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

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%
Suitability for Carbonyl Derivatization	Passes test

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