Description

4-Oxo-2-Phenylcyclopentanecarboxylic Acid is a versatile and high-purity organic intermediate characterized by its cyclopentanone core substituted with a phenyl group and a carboxylic acid functionality. This compound is valued for its role as a critical building block in the synthesis of complex molecules, particularly in the pharmaceutical and fine chemical industries. It is essential for researchers and manufacturers developing active pharmaceutical ingredients (APIs), agrochemicals, and advanced materials who require reliable, high-quality synthetic precursors.

Application

• Pharmaceutical Intermediate: A key synthon in the synthesis of prostaglandin analogs, non-steroidal anti-inflammatory drugs (NSAIDs), and other bioactive molecules with cyclopentane rings.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, leveraging its reactive ketone and acid groups for further derivatization.
• Fine Chemical Production: Serves as a precursor for fragrances, flavors, and specialty chemicals requiring specific stereochemistry and functional groups.
• Academic & Industrial Research: Employed in organic chemistry research for methodology development, catalysis studies, and the construction of complex natural product analogs.
• Material Science: Investigated as a monomer or cross-linking agent for the development of novel polymers with specific thermal or mechanical properties.

Basic Information

Product Name	4-Oxo-2-Phenylcyclopentanecarboxylic Acid
CAS No.	85729-34-6
Molecular Formula	C12H12O3
Molecular Weight	204.22 g/mol
Synonyms	2-Phenyl-4-oxocyclopentanecarboxylic Acid; 4-Oxo-2-phenylcyclopentane-1-carboxylic Acid; 2-Phenyl-1-carboxy-4-cyclopentanone; NSC 163022; 4-Oxo-2-phenyl-1-cyclopentanecarboxylic acid; α-Phenyl-γ-oxocyclopentanepropionic acid (obsolete); Cyclopentanecarboxylic acid, 4-oxo-2-phenyl-
EINECS	Contact for details

Quality Control

Our 4-Oxo-2-Phenylcyclopentanecarboxylic Acid is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. We provide full traceability and Certificates of Analysis (COA) are available for every shipment, confirming compliance with agreed specifications. Our quality commitment supports applications in cGMP environments and research requiring the highest standards of material integrity.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Single Unknown Impurity	≤ 0.5%

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