Description

5-Methyl-1,3-cyclopentanedione is a versatile diketone compound that serves as a critical building block in organic synthesis. Its unique structure, featuring two carbonyl groups on a cyclopentane ring, makes it a valuable precursor for synthesizing complex molecules, including pharmaceuticals, agrochemicals, and specialty chemicals. This high-purity intermediate is essential for research and development chemists and manufacturers in the pharmaceutical, fragrance, and fine chemical industries seeking reliable and consistent raw materials.

Application

• Pharmaceutical Intermediate: A key synthon for the production of active pharmaceutical ingredients (APIs), particularly in the synthesis of steroid analogs and other complex heterocyclic compounds.
• Agrochemical Synthesis: Used in the manufacture of advanced pesticides and herbicides, where its ring structure contributes to the biological activity of the final product.
• Flavor and Fragrance Ingredient: Acts as a precursor for musk-like odorants and other specialty aroma chemicals due to its cyclic diketone functionality.
• Organic Synthesis Building Block: Employed in various name reactions and cyclization processes to construct more complex molecular architectures in research and fine chemical production.
• Polymer Chemistry: Can be utilized as a monomer or cross-linking agent in the development of specialty polymers with specific thermal or mechanical properties.
• Chemical Research: Serves as a standard or starting material in academic and industrial R&D labs for methodological studies and new compound discovery.

Basic Information

Product Name	5-Methyl-1,3-Cyclopentanedione
CAS No.	35029-03-9
Molecular Formula	C6H8O2
Molecular Weight	112.13 g/mol
Synonyms	5-Methylcyclopentane-1,3-dione; 1,3-Cyclopentanedione, 5-methyl-; 5-Methyl-1,3-diketocyclopentane; NSC 163022; 5-Methylcyclopentanedione
EINECS	Contact for details

Quality Control

Our 5-Methyl-1,3-cyclopentanedione is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high chemical purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee compliance with your specifications and support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	95 - 100 °C
Loss on Drying	≤ 1.0 %
Residue on Ignition	≤ 0.1 %

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