Description

Cyclopentanecarboxylic Acid Anhydride is a reactive cyclic anhydride used as a versatile building block in advanced organic synthesis. This compound is valued for its ability to introduce the cyclopentane moiety and carboxylic acid functionality, enabling the creation of complex molecular architectures. It is primarily sought after by research and development chemists in the pharmaceutical, agrochemical, and specialty chemical industries for applications ranging from drug intermediate synthesis to polymer modification.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those containing cyclopentane-based structures.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators requiring specific cyclic frameworks.
• Polymer Chemistry: Serves as a monomer or cross-linking agent for the production of specialty polyesters, polyamides, and epoxy resins.
• Organic Synthesis Reagent: Employed in academic and industrial R&D for acylation reactions, ring-opening polymerizations, and the preparation of esters and amides.
• Flavor and Fragrance Industry: Acts as an intermediate for synthesizing specific musk or ester-based aroma chemicals.
• Material Science: Used in the development of advanced materials, including liquid crystals and organic semiconductors.

Basic Information

Product Name	Cyclopentanecarboxylic Acid Anhydride
CAS No.	71016-95-0
Molecular Formula	C12H18O3
Molecular Weight	210.27 g/mol
Synonyms	Cyclopentanecarboxylic Anhydride; Cyclopentanecarboxylic Acid Cyclic Anhydride; Dicyclopentylcarboxylic Anhydride; Cyclopentanoyl Anhydride; Cyclopentane-1-carboxylic Acid Anhydride; Cyclopentylformic Anhydride; 1-Cyclopentanecarboxylic Acid Anhydride; Cyclopentanecarboxylic Acid, Anhydride
EINECS	Contact for details

Quality Control

Our Cyclopentanecarboxylic Acid Anhydride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatography (HPLC/GC) and spectroscopic methods (IR, NMR), to ensure high purity and consistency. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment 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 a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis and maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (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.