Description

Methacrolein-Dnph CAS NO 5077-73-6 is a high-purity chemical derivative, specifically the 2,4-dinitrophenylhydrazone (DNPH) derivative of methacrolein. This compound is a critical analytical standard and reagent used primarily for the identification and quantification of carbonyl compounds, including aldehydes and ketones, via chromatographic techniques. It is essential for quality control and research laboratories in the chemical, pharmaceutical, and environmental monitoring sectors that require precise analytical methods.

Application

• Primary use as an analytical reference standard for the derivatization and subsequent HPLC or GC analysis of carbonyl compounds like methacrolein.
• Critical reagent in environmental testing for quantifying airborne aldehydes (e.g., formaldehyde, acrolein) as part of DNPH-cartridge sampling methods.
• Used in pharmaceutical R&D and quality control for the analysis of impurities and degradation products that contain carbonyl functional groups.
• Essential tool in academic and industrial chemical research for studying reaction mechanisms involving α,β-unsaturated aldehydes.
• Applied in material science for the analysis of volatile organic compounds (VOCs) emitted from polymers and composite materials.
• Supports food and flavor industry research in the analysis of carbonyl-based aroma and flavor compounds.

Basic Information

Product Name	Methacrolein-Dnph
CAS No.	5077-73-6
Molecular Formula	C₁₀H₁₀N₄O₄
Molecular Weight	250.21 g/mol
Synonyms	Methacrolein 2,4-Dinitrophenylhydrazone; 2-Methylpropenal 2,4-DNPH Derivative; 2-Methyl-2-propenal 2,4-dinitrophenylhydrazone; Methacrylaldehyde DNPH; (E)-2-Methylacrylaldehyde 2,4-dinitrophenylhydrazone; DNPH derivative of Methacrolein; 2,4-DNPH-Methacrolein
EINECS	Contact for details

Quality Control

Our Methacrolein-Dnph is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity verification and identity confirmation by FT-IR and melting point determination, to ensure it meets the high standards required for analytical applications. Certificates of Analysis (COA) with detailed chromatographic data are provided to guarantee traceability and batch-to-batch consistency.

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). This product is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed and away from direct light exposure to maintain stability and purity.

Specification

Item	Specification
Appearance	Orange to red crystalline powder
Identification (IR)	Conforms to reference spectrum
Melting Point	Contact for details
Purity (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 0.5%

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