Description

Propane-1,3-Di(Sulfonyl Chloride) is a versatile and highly reactive bifunctional sulfonylating agent. Its core value proposition lies in its ability to act as a key building block for introducing sulfonamide or sulfonate linkages into complex organic molecules, enabling the synthesis of pharmaceuticals, agrochemicals, and advanced materials. This compound is essential for R&D chemists and process engineers in the fine chemical, pharmaceutical, and polymer industries who require a reliable, high-purity intermediate for constructing molecular scaffolds with specific functional properties.

Application

• Pharmaceutical Intermediate: Critical building block for synthesizing active pharmaceutical ingredients (APIs), particularly those containing sulfonamide groups, such as diuretics, sulfa drugs, and protease inhibitors.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides where the sulfonyl moiety contributes to biological activity and selectivity.
• Polymer & Material Science: Serves as a cross-linking agent or monomer precursor for creating specialty polymers, ion-exchange resins, and sulfonated materials with unique thermal or chemical resistance.
• Dye & Pigment Manufacturing: Employed in the synthesis of sulfonated dyes and organic pigments, enhancing water solubility and color fastness.
• Ligand & Catalyst Preparation: Useful for preparing sulfonated ligands used in asymmetric catalysis and metal complexation.
• Chemical Research & Development: A valuable reagent in organic synthesis for constructing C-S bonds and exploring new sulfonation methodologies.

Basic Information

Product Name	Propane-1,3-Di(Sulfonyl Chloride)
CAS No.	20686-91-3
Molecular Formula	C3H6Cl2O4S2
Molecular Weight	241.11 g/mol
Synonyms	1,3-Propanedisulfonyl Dichloride; Propane-1,3-disulfonyl Dichloride; 1,3-Propane Disulfonyl Chloride; 3-Chlorosulfonylpropane-1-sulfonyl Chloride; NSC 523258; Trimethylene Disulfonyl Chloride; 1,3-Bis(chlorosulfonyl)propane
EINECS	Contact for details

Quality Control

Our Propane-1,3-Di(Sulfonyl Chloride) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets precise specifications for sensitive synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory compliance 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 hygroscopic and moisture-sensitive nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis. Keep away from strong bases, oxidizers, and sources of ignition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Melting Point	Contact for details

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