Description

3-Oxocyclobutanecarboxylic Acid is a versatile and synthetically valuable four-membered ring building block. Its unique strained-ring structure containing both a ketone and a carboxylic acid functional group makes it a critical intermediate for constructing complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, particularly for the development of novel active ingredients and advanced materials.

Application

• Pharmaceutical Intermediate: A key synthon for the synthesis of novel drug candidates, including protease inhibitors and other bioactive molecules.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and plant growth regulators.
• Material Science: Serves as a precursor for specialty polymers, ligands, and organic frameworks with tailored properties.
• Chemical Research: Employed in organic synthesis for ring-expansion reactions, cycloadditions, and as a scaffold for library development.
• Fine Chemical Production: Integral to the manufacture of complex flavors, fragrances, and other high-value specialty chemicals.

Basic Information

Product Name	3-Oxocyclobutanecarboxylic Acid
CAS No.	23761-23-1
Molecular Formula	C5H6O3
Molecular Weight	114.10 g/mol
Synonyms	3-Oxocyclobutanecarboxylic Acid; Cyclobutanone-3-carboxylic Acid; 3-Carboxycyclobutanone; 1-Oxaspiro[2.2]pentane-4-carboxylic acid; Oxetan-3-one-2-carboxylic acid; 3-Ketocyclobutanecarboxylic acid; 3-Oxocyclobutane-1-carboxylic acid
EINECS	Contact for details

Quality Control

Our 3-Oxocyclobutanecarboxylic 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 a detailed Certificate of Analysis (COA) with every shipment, confirming compliance with agreed specifications. Our quality commitment supports applications requiring high-purity intermediates under cGMP or ISO 9001 frameworks.

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 an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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