Description

Dimethyl Cyclopentylmalonate is a high-purity diester compound, serving as a versatile and critical building block in advanced organic synthesis. Its value lies in its reactive malonate ester functionality, which enables efficient carbon-carbon bond formation and the construction of complex molecular frameworks under mild conditions. This product is essential for research chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries seeking to develop novel active ingredients and specialty materials.

Application

• Pharmaceutical Intermediates: Key synthon for the production of active pharmaceutical ingredients (APIs), particularly those containing cyclopentane or functionalized carboxylic acid derivatives.
• Agrochemical Synthesis: Used in the manufacture of herbicides, fungicides, and plant growth regulators requiring specific cyclic structures.
• Fine Chemical Production: Acts as a precursor for flavors, fragrances, and advanced materials where precise molecular architecture is required.
• Organic Synthesis Research: Employed in academic and industrial R&D for methodologies like Michael additions, alkylations, and cyclization reactions.
• Ligand and Catalyst Development: Serves as a starting material for synthesizing chiral auxiliaries and complex ligands used in asymmetric catalysis.

Basic Information

Product Name	Dimethyl Cyclopentylmalonate
CAS No.	82491-60-9
Molecular Formula	C₁₁H₁₈O₄
Molecular Weight	214.26 g/mol
Synonyms	Cyclopentylmalonic Acid Dimethyl Ester; Dimethyl Cyclopentylpropanedioate; Dimethyl (Cyclopentyl)malonate; Propanedioic acid, (cyclopentyl)-, 1,3-dimethyl ester; Malonic acid, cyclopentyl-, dimethyl ester
EINECS	Contact for details

Quality Control

Our Dimethyl Cyclopentylmalonate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including chromatography (HPLC, GC) and spectroscopy (NMR, IR), to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical parameters are provided and available upon request to 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). Keep away from strong oxidizing agents, strong bases, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 98.0%
Water Content (KF)	≤ 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.