Description

4H-Pyran-4-One,2,3-Dihydro-5-Methyl-(9Ci) is a valuable heterocyclic building block and synthetic intermediate with the CAS number 53252-22-5. Its unique pyranone core structure makes it a versatile precursor in advanced organic synthesis and pharmaceutical research. This compound is essential for chemists and manufacturers in the fine chemical, agrochemical, and pharmaceutical development sectors seeking to create novel molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and plant growth regulators.
• Fine Chemical Production: Acts as a precursor for dyes, pigments, and other specialty chemicals requiring a functionalized pyranone moiety.
• Material Science Research: Investigated as a monomer or starting material for developing polymers with specific optical or electronic properties.
• Academic & R&D: Employed in organic chemistry research for methodology development and the construction of complex heterocyclic compounds.
• Flavor & Fragrance Industry: Potential intermediate for synthesizing certain aroma chemicals, given its structural relationship to lactones and related compounds.

Basic Information

Product Name	4H-Pyran-4-One,2,3-Dihydro-5-Methyl-(9Ci)
CAS No.	53252-22-5
Molecular Formula	C6H8O2
Molecular Weight	112.13 g/mol
Synonyms	5-Methyl-2,3-dihydro-4H-pyran-4-one; 5-Methyl-4H-pyran-4-one, 2,3-dihydro-; 2,3-Dihydro-5-methyl-4H-pyran-4-one; 5-Methyl-2,3-dihydropyran-4-one; 4H-Pyran-4-one, 2,3-dihydro-5-methyl-; 5-Methyldihydropyran-4-one; Dihydro-5-methyl-4H-pyran-4-one
EINECS	Contact for details

Quality Control

Our 4H-Pyran-4-One,2,3-Dihydro-5-Methyl-(9Ci) is produced under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to verify identity and purity against stringent internal specifications. Certificates of Analysis (COA) are provided with every shipment, detailing all relevant quality parameters.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Recommended storage temperature is between 15°C and 25°C. Keep away from heat, sparks, and open flame. For long-term storage, consider maintaining under an inert atmosphere to preserve stability.

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.