Description

2,4-Dinitrophenylhydrazine Phosphoric Acid is a specialized reagent-grade chemical primarily used as a derivatizing agent for the qualitative and quantitative analysis of carbonyl compounds. Its core value lies in its ability to form highly colored, crystalline hydrazone derivatives, which are crucial for detection, separation, and characterization in analytical workflows. This product is essential for quality control laboratories, research institutions, and chemical manufacturers involved in pharmaceutical analysis, food safety testing, and environmental monitoring.

Application

• Derivatization Reagent for Carbonyl Analysis: Used in HPLC, GC, and spectrophotometric methods to detect and quantify aldehydes and ketones.
• Pharmaceutical Impurity Profiling: Critical for identifying and quantifying carbonyl-containing impurities and degradation products in active pharmaceutical ingredients (APIs).
• Food and Flavor Chemistry: Employed in the analysis of flavor compounds, spoilage markers (like rancidity), and food additives.
• Environmental Monitoring: Applied in testing for airborne aldehydes (e.g., formaldehyde) and other carbonyl pollutants.
• Organic Synthesis Intermediate: Serves as a precursor or reagent in the synthesis of more complex hydrazine derivatives and dyes.
• Academic and Industrial Research: A standard tool in research laboratories for structure elucidation and reaction mechanism studies.

Basic Information

Item	Details
Product Name	2,4-Dinitrophenylhydrazine Phosphoric Acid
CAS No.	125038-14-4
Molecular Formula	C₆H₆N₄O₅ • H₃PO₄
Molecular Weight	Contact for details
Synonyms	2,4-DNPH Phosphoric Acid; 2,4-Dinitrophenylhydrazine Phosphate; Brady's Reagent (Phosphoric Acid Solution); DNPH in Phosphoric Acid; Carbonyl Derivatization Reagent; (2,4-Dinitrophenyl)hydrazine Phosphoric Acid Salt; 2,4-DNPH-H₃PO₄
EINECS	Contact for details

Quality Control

Our 2,4-Dinitrophenylhydrazine Phosphoric Acid is manufactured under strict quality management systems to ensure batch-to-batch consistency and reliability for sensitive analytical applications. Each lot undergoes rigorous testing, including purity assay by titration, identification by FT-IR, and verification of derivatization performance. A comprehensive Certificate of Analysis (COA) detailing all test results 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, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its strong acid nature, store separately from bases and reactive materials.

Specification

Item	Specification
Appearance	Orange to red crystalline powder or suspension
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 95.0%
Solubility	Soluble in phosphoric acid/water mixture
Performance Test	Forms characteristic hydrazone derivatives with standard aldehydes/ketones

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