Description

1,1-Cyclobutanedicarboxylic Acid is a versatile and high-purity dicarboxylic acid building block essential for advanced organic synthesis. Its unique strained cyclobutane ring structure makes it a valuable precursor for creating complex molecules with specific conformational properties. This compound is primarily sought after by research institutions and manufacturers in the pharmaceutical and agrochemical sectors for developing novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for candidates requiring rigid, strained ring systems.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and plant growth regulators.
• Polymer Chemistry: Serves as a monomer or cross-linking agent for producing specialty polyamides, polyesters, and other high-performance polymers.
• Ligand and Catalyst Development: Employed in organic and organometallic chemistry to create novel chelating ligands and catalytic complexes.
• Academic & Industrial Research: A valuable reagent for methodological studies in organic synthesis and material science.
• Fine Chemical Production: Utilized in the manufacture of complex dyes, flavors, and fragrances.

Basic Information

Product Name	1,1-Cyclobutanedicarboxylic Acid
CAS No.	5445-51-2
Molecular Formula	C6H8O4
Molecular Weight	144.13 g/mol
Synonyms	Cyclobutane-1,1-dicarboxylic Acid; 1,1-Cyclobutanedicarboxylic Acid; NSC 163022; 1,1-Bis(carboxy)cyclobutane; Cyclobutan-1,1-diyldiacetic acid
EINECS	226-637-5

Quality Control

Our 1,1-Cyclobutanedicarboxylic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets the high-purity standards required for pharmaceutical and fine chemical applications. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming identity, purity, and impurity profiles.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product quality. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	155 - 160 °C
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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