Description

Cyclobutanecarboxylic Acid, 1-Mercapto-, Ethyl Ester (9Ci) is a specialized organosulfur compound featuring a cyclobutane ring and a thiol ester functional group. This unique structure makes it a valuable building block in advanced organic synthesis, particularly for introducing constrained ring systems and sulfur-containing moieties. It is primarily sought by research and development chemists in the pharmaceutical, agrochemical, and material science industries for the development of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the research and development of new drug candidates, particularly for creating molecules with cyclobutane-based scaffolds.
• Agrochemical Synthesis: Used in the development of novel pesticides and herbicides, where the thiol ester group can be a crucial reactive site.
• Ligand and Catalyst Precursor: Acts as a starting material for synthesizing specialized ligands used in asymmetric catalysis and metal-organic frameworks (MOFs).
• Material Science Research: Employed in the synthesis of monomers or additives for advanced polymers with specific thermal or mechanical properties.
• Chemical Biology Probes: Utilized to create probes for studying enzyme activity or protein interactions due to its reactive thiol ester functionality.
• Flavor and Fragrance Intermediate: Can be used in the synthesis of complex sulfur-containing aroma compounds for high-value applications.

Basic Information

Product Name	Cyclobutanecarboxylic Acid, 1-Mercapto-, Ethyl Ester (9Ci)
CAS No.	264874-47-7
Molecular Formula	C7H12O2S
Molecular Weight	160.23 g/mol
Synonyms	Ethyl 1-Mercaptocyclobutanecarboxylate; 1-Mercaptocyclobutanecarboxylic Acid Ethyl Ester; Ethyl 1-Sulfanylcyclobutanecarboxylate; Cyclobutanecarbothioic Acid, 1-Mercapto-, O-Ethyl Ester; 1-(Ethoxycarbonyl)cyclobutanethiol
EINECS	Contact for details

Quality Control

Our Cyclobutanecarboxylic Acid, 1-Mercapto-, Ethyl Ester (9Ci) is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatography (HPLC/GC) and spectroscopic methods (NMR, IR), to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance and regulatory needs.

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 properties of being easily oxidized (store under inert atmosphere) and highly volatile, it is recommended to handle under an inert atmosphere (e.g., nitrogen) and ensure containers are kept tightly sealed when not in use. Keep away from heat, sparks, and open flame.

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.