Description

Cyclopentanecarboxylic Acid, 1-Hydroxy-2-(1-Methylethylidene)-, Ethyl Ester (9Ci) is a specialized organic ester compound of significant interest in advanced chemical synthesis. This high-purity intermediate is valued for its unique sterically hindered structure, which provides a versatile reactive site for constructing complex molecular architectures. It is primarily sought after by research institutions and industrial R&D departments in the pharmaceutical and agrochemical sectors for the development of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel drug candidates, particularly those requiring complex, multi-cyclic frameworks.
• Agrochemical Synthesis: Used in the research and development of advanced pesticides and herbicides, where its structure can contribute to specific biological activity.
• Fine Chemical Production: Serves as a precursor for specialty chemicals, including fragrances, flavors, and performance materials.
• Academic & Industrial Research: Employed in methodological studies and as a model compound in organic chemistry research due to its distinctive functional groups.
• Material Science: Potential monomer or additive in the development of specialized polymers with tailored properties.

Basic Information

Product Name	Cyclopentanecarboxylic Acid, 1-Hydroxy-2-(1-Methylethylidene)-, Ethyl Ester (9Ci)
CAS No.	619297-03-9
Molecular Formula	C11H18O3
Molecular Weight	198.26 g/mol
Synonyms	Ethyl 1-Hydroxy-2-(1-methylethylidene)cyclopentanecarboxylate; 1-Hydroxy-2-isopropylidenecyclopentanecarboxylic Acid Ethyl Ester; Ethyl 2-Isopropylidene-1-hydroxycyclopentanecarboxylate; Cyclopentanecarboxylic acid, 1-hydroxy-2-(1-methylethylidene)-, ethyl ester; 619297-03-9; 1-Hydroxy-2-isopropylidenecyclopentane-1-carboxylic acid ethyl ester
EINECS	Contact for details

Quality Control

Our production of Cyclopentanecarboxylic Acid, 1-Hydroxy-2-(1-Methylethylidene)-, Ethyl Ester (9Ci) adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including chromatographic purity assays and structural confirmation. A Certificate of Analysis (COA) detailing specific results is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
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.