Description

Ethyl 5-Hydroxy-6-Methyl-4-Oxo-4H-Pyran-2-Carboxylate is a high-purity, functionalized pyran derivative with significant utility as a versatile chemical intermediate. This compound matters for its role in synthesizing complex molecules, particularly in the pharmaceutical and agrochemical sectors where its unique heterocyclic structure is a valuable building block. It is primarily needed by R&D chemists and process development scientists in fine chemical, pharmaceutical, and advanced material manufacturing.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds with pyran or related heterocyclic cores.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and plant growth regulators.
• Fine Chemical Production: Serves as a precursor for dyes, pigments, and other specialty chemicals requiring complex oxygenated heterocycles.
• Material Science Research: Investigated as a monomer or additive for creating polymers with specific optical or electronic properties.
• Academic & Industrial R&D: Employed in methodological studies and as a reference standard in organic synthesis and analytical chemistry.

Basic Information

Product Name	Ethyl 5-Hydroxy-6-Methyl-4-Oxo-4H-Pyran-2-Carboxylate
CAS No.	24056-48-2
Molecular Formula	C9H10O5
Molecular Weight	198.17 g/mol
Synonyms	Ethyl 5-hydroxy-6-methyl-4-oxo-4H-pyran-2-carboxylate; 5-Hydroxy-6-methyl-4-oxo-4H-pyran-2-carboxylic acid ethyl ester; Ethyl 5-hydroxy-6-methyl-4-oxopyran-2-carboxylate; 2-Carbethoxy-5-hydroxy-6-methyl-4-pyrone; 5-Hydroxy-6-methyl-4-oxo-4H-pyran-2-carboxylic Acid Ethyl Ester; Ethyl 5-hydroxy-6-methyl-4-oxo-4H-pyran-2-carboxylate (CAS 24056-48-2)
EINECS	Contact for details

Quality Control

Our Ethyl 5-Hydroxy-6-Methyl-4-Oxo-4H-Pyran-2-Carboxylate is produced under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing specifications such as assay (by HPLC), related substances, and physical characteristics is provided with every shipment to guarantee it meets your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
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.