Description

Chloridosulfurous Acid Isopropyl Ester is a specialized organosulfur reagent used as a key intermediate in fine chemical synthesis. This compound is valued for its ability to introduce chlorosulfonyl functional groups, enabling critical transformations in complex molecule construction. It is primarily utilized by research and development chemists and process engineers in the pharmaceutical, agrochemical, and advanced materials sectors for building novel molecular architectures.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly those containing sulfonamide or sulfonyl chloride moieties.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides where the chlorosulfonyl group is a critical functional handle.
• Polymer Modification: Serves as a reactive agent for introducing sulfonyl chloride groups into polymer chains, altering properties like solubility or reactivity.
• Chemical Research Reagent: Employed in academic and industrial R&D labs for method development and the synthesis of novel sulfur-containing compounds.
• Dye and Pigment Manufacturing: Acts as an intermediate in the production of certain sulfur-based dyes and colorants.
• Ligand and Catalyst Preparation: Used to synthesize specialized ligands or catalyst precursors for coordination chemistry and catalysis.

Basic Information

Product Name	Chloridosulfurous Acid Isopropyl Ester
CAS No.	22598-56-7
Molecular Formula	C3H7ClO2S
Molecular Weight	142.60 g/mol
Synonyms	Isopropyl Chlorosulfite; Isopropyl Chlorosulfonate; Propan-2-yl chlorosulfite; Chlorosulfurous Acid Isopropyl Ester; Isopropoxy Sulfuryl Chloride; 2-Propyl Chlorosulfite; 1-Methylethyl Chlorosulfite
EINECS	Contact for details

Quality Control

Our Chloridosulfurous Acid Isopropyl Ester is produced under stringent quality management systems to ensure batch-to-batch consistency and reliability for your synthetic processes. Each lot undergoes comprehensive analytical testing including assay, purity profiling, and identity confirmation. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality and regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to prevent decomposition. 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
Assay (GC)	≥ 95.0%
Purity (GC Area %)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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