Description

Cyclopentane-1,2-Dicarboxylic Acid Anhydride is a high-purity cyclic anhydride building block used in advanced organic synthesis. Its rigid, fused-ring structure makes it a valuable precursor for creating specialized polymers, pharmaceuticals, and fine chemicals with enhanced thermal and mechanical properties. This compound is essential for R&D and production chemists in the pharmaceutical, agrochemical, and performance materials industries seeking to develop novel compounds and high-value intermediates.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs) and complex drug molecules.
• Polymer & Resin Modifier: Used as a curing agent or comonomer in epoxy, polyester, and alkyd resins to impart rigidity and improve heat resistance.
• Fine Chemical Synthesis: Serves as a versatile precursor for creating specialty chemicals, dyes, and flavor/fragrance compounds.
• Agrochemical Development: Intermediate in the production of advanced herbicides, pesticides, and plant growth regulators.
• Academic & Industrial Research: A valuable reagent for exploring new synthetic methodologies and material science applications.
• Crosslinking Agent: Imparts crosslinking properties in coatings, adhesives, and composite materials for enhanced durability.

Basic Information

Product Name	Cyclopentane-1,2-Dicarboxylic Acid Anhydride
CAS No.	35878-28-5
Molecular Formula	C7H8O3
Molecular Weight	140.14 g/mol
Synonyms	1,2-Cyclopentanedicarboxylic Anhydride; 3-Oxabicyclo[3.2.1]octane-2,4-dione; Cyclopentane-1,2-dicarboxylic anhydride; 1,2-Cyclopentanedicarboxylic acid anhydride; 1,2,3,6-Tetrahydrophthalic anhydride (partial structure isomer); CPDA; Cyclopentanedicarboxylic acid cyclic anhydride
EINECS	Contact for details

Quality Control

Our Cyclopentane-1,2-Dicarboxylic Acid Anhydride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is 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). This product is hygroscopic (moisture-sensitive) and must be kept under dry conditions to prevent hydrolysis. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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