Description

3,5-Bis(Methylthio)-4-Isothiazolecarbonyl Chloride is a specialized, high-value heterocyclic building block and reactive intermediate. This compound matters for its role as a key precursor in the synthesis of advanced agrochemicals and pharmaceuticals, particularly those requiring the isothiazole pharmacophore. Industrial and academic researchers in fine chemical synthesis, agrochemical R&D, and pharmaceutical development need this material for creating novel active ingredients and functional molecules.

Application

• Agrochemical Intermediate: A critical precursor for the synthesis of novel fungicides, herbicides, and insecticides containing the isothiazole ring system.
• Pharmaceutical Building Block: Used in medicinal chemistry for the development of new drug candidates, particularly in antimicrobial and anti-inflammatory research.
• Fine Chemical Synthesis: Serves as a versatile acylating agent and heterocyclic core for constructing complex molecules in custom synthesis and process development.
• Polymer Chemistry: Can be utilized to introduce functional isothiazole units into polymers for specialized material properties.
• Research & Development: Essential for academic and industrial R&D labs exploring new chemical entities and reaction pathways in heterocyclic chemistry.

Basic Information

Product Name	3,5-Bis(Methylthio)-4-Isothiazolecarbonyl Chloride
CAS No.	4886-16-2
Molecular Formula	C6H6ClNO2S3
Molecular Weight	271.77 g/mol
Synonyms	4-Isothiazolecarbonyl chloride, 3,5-bis(methylthio)-; 3,5-Bis(methylsulfanyl)-4-isothiazolecarbonyl chloride; 3,5-Bis(methylmercapto)-4-isothiazolecarbonyl chloride; 3,5-Dimethylthio-4-isothiazolecarbonyl chloride; 4-Chlorocarbonyl-3,5-bis(methylthio)isothiazole; 3,5-Bis(methylthio)isothiazole-4-carbonyl chloride
EINECS	Contact for details

Quality Control

Our 3,5-Bis(Methylthio)-4-Isothiazolecarbonyl Chloride is produced under strict quality management systems to ensure batch-to-batch consistency and high purity for demanding synthetic applications. We employ advanced analytical techniques including HPLC, GC, NMR, and IR spectroscopy for comprehensive characterization and impurity profiling. A Certificate of Analysis (COA) detailing purity, identity, and relevant specifications is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent decomposition. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases, strong oxidizing agents, and alcohols.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
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.