Description

n-Valeraldehyde 2,4-Dinitrophenylhydrazone CAS NO 2057-84-3 is a high-purity chemical derivative of n-valeraldehyde, specifically its 2,4-dinitrophenylhydrazone (DNPH) derivative. This compound is of significant value as a standard reference material and analytical reagent for the qualitative and quantitative determination of carbonyl compounds, particularly aldehydes. It is primarily needed by analytical laboratories, research institutions, and quality control departments in the chemical, pharmaceutical, and environmental monitoring sectors.

Application

• Analytical Standard for HPLC/GC: Used as a certified reference material for calibrating instruments and validating methods in chromatography.
• Derivatization Reagent for Carbonyl Analysis: Essential for converting volatile aldehydes and ketones into stable, detectable DNPH-derivatives for analysis in air, water, and product samples.
• Pharmaceutical Impurity Profiling: Employed in the identification and quantification of aldehyde-related impurities or degradation products in active pharmaceutical ingredients (APIs).
• Food and Flavor Chemistry: Applied in research to analyze carbonyl compounds that contribute to flavor, aroma, or potential off-flavors in food products.
• Environmental Monitoring: A key component in test kits and standardized methods for detecting formaldehyde and other toxic aldehydes in indoor and industrial air.
• Organic Synthesis Intermediate: Serves as a protected form of the aldehyde group or as a precursor in specialized synthetic pathways.
• University & Research Lab Chemical: Utilized in teaching and advanced research projects involving carbonyl chemistry and analytical techniques.

Basic Information

Product Name	n-Valeraldehyde 2,4-Dinitrophenylhydrazone
CAS No.	2057-84-3
Molecular Formula	C₁₂H₁₆N₄O₄
Molecular Weight	280.28 g/mol
Synonyms	Valeraldehyde 2,4-DNPH; Pentanal 2,4-Dinitrophenylhydrazone; n-Pentanal DNPH Derivative; 2,4-Dinitrophenylhydrazone of Valeraldehyde; n-Valeraldehyde DNPH; (E)-Pentanal 2-(2,4-Dinitrophenyl)hydrazone; Aldehyde C5 DNPH
EINECS	Contact for details

Quality Control

Our n-Valeraldehyde 2,4-Dinitrophenylhydrazone is manufactured under strict quality protocols to ensure batch-to-batch consistency and high purity, suitable for sensitive analytical applications. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We adhere to relevant industry standards for reference materials, and specifications can be aligned with customer requirements for specific analytical methods.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its light-sensitive and easily oxidized nature, it is recommended to store the product under an inert atmosphere for long-term stability and to minimize decomposition. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	156 - 160 °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.