Description

5-Hydroxy-4-Oxo-4H-Pyran-2-Carboxylic Acid Methyl Ester is a versatile pyranone derivative that serves as a key synthetic intermediate and building block in advanced organic chemistry. Its unique structure, featuring both a carboxylic ester and a hydroxyl-ketone moiety, makes it a valuable precursor for synthesizing heterocyclic compounds, pharmaceuticals, and functional materials. This high-purity compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and fine chemical industries seeking reliable, high-quality intermediates for complex synthesis.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds with pyran or pyridine core structures.
• 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 heterocyclic frameworks.
• Academic & Industrial Research: A valuable reagent in medicinal chemistry and material science for exploring new chemical entities and molecular properties.
• Coordination Chemistry: Acts as a ligand or precursor for metal-organic frameworks (MOFs) and catalysts due to its oxygen-rich functional groups.

Basic Information

Product Name	5-Hydroxy-4-Oxo-4H-Pyran-2-Carboxylic Acid Methyl Ester
CAS No.	49652-51-9
Molecular Formula	C8H8O5
Molecular Weight	184.15 g/mol
Synonyms	Methyl 5-hydroxy-4-oxo-4H-pyran-2-carboxylate; 5-Hydroxy-4-oxo-4H-pyran-2-carboxylic acid methyl ester; 2-Carbomethoxy-5-hydroxy-4-pyrone; Methyl 5-hydroxy-4-oxopyran-2-carboxylate; 5-Hydroxy-4-oxo-4H-pyran-2-carboxylic acid, methyl ester; 4H-Pyran-2-carboxylic acid, 5-hydroxy-4-oxo-, methyl ester; 49652-51-9
EINECS	Contact for details

Quality Control

Our 5-Hydroxy-4-Oxo-4H-Pyran-2-Carboxylic Acid Methyl Ester is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. We provide comprehensive analytical documentation, including Certificates of Analysis (COA) with detailed results from HPLC, NMR, and IR spectroscopy. Our quality commitment ensures the material meets the stringent requirements for research and commercial synthesis applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. This material is light-sensitive and should be stored away from direct light exposure.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
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.