Description

Epithiochlorhydrin CAS NO 3221-15-6 is a specialized organosulfur compound featuring both an epoxide and a chloromethyl group, making it a versatile and highly reactive chemical intermediate. Its unique bifunctional structure is critical for introducing sulfur-containing linkages and cross-linking capabilities into polymer backbones and fine chemical syntheses. This product is essential for manufacturers in the polymer, pharmaceutical, and agrochemical industries seeking to develop advanced materials with specific mechanical or chemical properties.

Application

• Polymer Modification & Cross-linking Agent: Used to synthesize and modify epoxy resins, polysulfide polymers, and thiourethanes, enhancing properties like chemical resistance, adhesion, and flexibility.
• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates containing sulfur heterocycles.
• Agrochemical Synthesis: Employed in the production of herbicides, fungicides, and insecticides where the epithio moiety imparts specific biological activity.
• Adhesive & Sealant Formulations: Acts as a reactive diluent and curing agent in high-performance adhesive systems, particularly those requiring oil or solvent resistance.
• Chemical Research & Development: Utilized in organic synthesis for constructing complex sulfur-containing molecules and as a model compound in reaction mechanism studies.
• Rubber & Elastomer Production: Functions as a vulcanizing agent or co-agent to improve the thermal stability and cross-link density of synthetic rubbers.

Basic Information

Product Name	Epithiochlorhydrin
CAS No.	3221-15-6
Molecular Formula	C3H5ClOS
Molecular Weight	124.59 g/mol
Synonyms	Epichlorohydrin sulfide; 1-Chloro-2,3-epithiopropane; 2-(Chloromethyl)thiirane; 3-Chloro-1,2-epithiopropane; Epithioepichlorohydrin; Thiiranemethanol, chloromethyl-; (Chloromethyl)ethylene sulfide; Epichlorohydrin episulfide
EINECS	221-749-5

Quality Control

Our Epithiochlorhydrin is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including chromatography and spectroscopic methods, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15-25°C (59-77°F). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed to prevent degradation from atmospheric moisture. Keep away from strong bases, oxidizing agents, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	1.30 - 1.35
Refractive Index (n20D)	1.510 - 1.520

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