Description

6-Methyl-2-Oxo-2H-Pyran-5-Carboxylic Acid Methyl Ester is a versatile heterocyclic building block and a key intermediate in organic synthesis. This compound is valued for its pyranone core structure, which is integral to the development of various active pharmaceutical ingredients and fine chemicals. It is primarily sought after by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for synthesizing complex molecules.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those containing dihydropyran or pyranone scaffolds.
• Agrochemical Synthesis: Used in the research and development of novel pesticides, herbicides, and fungicides.
• Fine Chemical Production: Serves as a versatile building block for creating complex organic molecules used in flavors, fragrances, and advanced materials.
• Academic & Industrial Research: Employed in chemical research for method development, catalysis studies, and exploring new synthetic pathways.
• Dye & Pigment Intermediate: Acts as a starting material for synthesizing certain heterocyclic dyes and organic pigments.

Basic Information

Product Name	6-Methyl-2-Oxo-2H-Pyran-5-Carboxylic Acid Methyl Ester
CAS No.	669-40-9
Molecular Formula	C8H8O4
Molecular Weight	168.15 g/mol
Synonyms	5-(Methoxycarbonyl)-6-methyl-2H-pyran-2-one; Methyl 6-methyl-2-oxo-2H-pyran-5-carboxylate; 6-Methyl-2-oxo-2H-pyran-5-carboxylic acid methyl ester; 5-Carbomethoxy-6-methyl-2-pyrone; 6-Methyl-5-(methoxycarbonyl)-2-pyrone; 2H-Pyran-2-one, 5-(methoxycarbonyl)-6-methyl-; Methyl 6-methyl-2-oxo-2H-pyran-5-carboxylate
EINECS	211-574-8

Quality Control

Our 6-Methyl-2-Oxo-2H-Pyran-5-Carboxylic Acid Methyl Ester is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specific results for purity, residual solvents, and related substances are provided and available upon request to support your quality assurance processes.

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). Keep away from strong bases and incompatible organic solvents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residual Solvents (GC)	Meets ICH guidelines

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