Description

Ethyl 5-Hydroxy-2-Methyl-4-Oxo-4H-Pyran-3-Carboxylate is a high-purity organic compound belonging to the pyranone class, serving as a versatile chemical intermediate. Its value lies in its functionalized structure, which makes it a critical building block for synthesizing more complex molecules in advanced research and development. This product is essential for pharmaceutical chemists, agrochemical researchers, and material scientists seeking reliable, high-quality intermediates for their synthesis workflows.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of novel active pharmaceutical ingredients (APIs), particularly for compounds with heterocyclic frameworks.
• Agrochemical Synthesis: Used in the production of advanced crop protection agents and herbicides, leveraging its reactive pyranone core.
• Material Science Research: Acts as a precursor for organic electronic materials, dyes, and functional polymers due to its conjugated system.
• Chemical Research & Development: Employed in academic and industrial labs for method development and the synthesis of complex natural product analogs or specialty chemicals.
• Flavor & Fragrance Industry: Serves as a potential intermediate for creating specific lactone-based aroma compounds, subject to purity and regulatory compliance.

Basic Information

Product Name	Ethyl 5-Hydroxy-2-Methyl-4-Oxo-4H-Pyran-3-Carboxylate
CAS No.	944269-40-3
Molecular Formula	C9H10O5
Molecular Weight	198.17 g/mol
Synonyms	Ethyl 5-hydroxy-2-methyl-4-oxo-4H-pyran-3-carboxylate; 3-Carbethoxy-5-hydroxy-2-methyl-4-pyrone; 5-Hydroxy-2-methyl-4-oxo-4H-pyran-3-carboxylic acid ethyl ester; Ethyl 3-carboxy-5-hydroxy-2-methyl-4-pyrone; 4H-Pyran-3-carboxylic acid, 5-hydroxy-2-methyl-4-oxo-, ethyl ester; Ethyl maltol derivative; Kojic acid ethyl ester analog
EINECS	Contact for details

Quality Control

Our Ethyl 5-Hydroxy-2-Methyl-4-Oxo-4H-Pyran-3-Carboxylate is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment and is available upon request.

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). Keep away from incompatible materials such as strong oxidizing agents, strong bases, and strong acids.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
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.