Description

Sulfurous Acid 4-Chlorobutyl 2-Propynyl Ester is a specialized organosulfur compound with a unique molecular structure combining a propargyl ether and a chlorobutyl chain. This compound serves as a valuable synthetic intermediate and functional monomer in advanced chemical synthesis, offering reactivity at multiple sites for cross-coupling and polymerization reactions. It is primarily utilized by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and polymer sectors for developing novel active ingredients and specialty materials.

Application

• Pharmaceutical Intermediate: Used in the synthesis of novel drug candidates, particularly those requiring sulfur-containing or propargyl-functionalized scaffolds.
• Agrochemical Synthesis: Serves as a key building block for creating new pesticides, herbicides, and fungicides with tailored properties.
• Polymer & Resin Modifier: Acts as a functional monomer or cross-linking agent in the production of specialty polymers, coatings, and adhesives to enhance thermal or chemical resistance.
• Chemical Research & Development: Employed in academic and industrial R&D labs for exploring new organic reactions and catalytic processes.
• Ligand & Catalyst Precursor: Utilized in the preparation of specialized ligands for metal catalysis or as a precursor for catalyst development.
• Material Science: Investigated for use in creating advanced materials with specific electronic or surface properties.

Basic Information

Product Name	Sulfurous Acid 4-Chlorobutyl 2-Propynyl Ester
CAS No.	74039-52-4
Molecular Formula	C7H11ClO2S
Molecular Weight	194.68 g/mol
Synonyms	4-Chlorobutyl 2-Propynyl Sulfite; 2-Propynyl 4-Chlorobutyl Sulfite; Sulfurous Acid, 4-Chlorobutyl 2-Propynyl Ester; 4-Chlorobutyl Propargyl Sulfite; Propargyl 4-Chlorobutyl Sulfite; (4-Chlorobutoxy)(prop-2-yn-1-yloxy)sulfane; Sulfite Ester of 4-Chlorobutanol and Propargyl Alcohol
EINECS	Contact for details

Quality Control

Our production of Sulfurous Acid 4-Chlorobutyl 2-Propynyl Ester adheres to stringent quality management protocols. Every 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 each shipment. We support cGMP and ISO 9001 standards for reliable supply to regulated industries.

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 light-sensitive; therefore, containers must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Specific Gravity (20°C)	1.20 - 1.30

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