Description

5-Isothiazolecarbonyl Chloride, 4-Cyano-3-Methyl- (9Ci) is a high-purity, reactive chemical intermediate essential for advanced organic synthesis. This compound is valued for its unique heterocyclic structure, which serves as a critical building block in the development of complex molecules. It is primarily sought by research institutions and manufacturers in the pharmaceutical and agrochemical industries for creating novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and infectious diseases.
• Agrochemical Synthesis: Used in the research and development of next-generation herbicides and fungicides with novel modes of action.
• Material Science Research: Serves as a monomer or functionalization agent in the development of specialty polymers and advanced materials.
• Chemical Biology Probes: Employed in the creation of molecular probes and labeling reagents for biochemical and diagnostic research.
• Fine Chemical Production: Acts as a versatile building block for synthesizing complex heterocyclic compounds used in various high-value chemical applications.

Basic Information

Product Name	5-Isothiazolecarbonyl Chloride, 4-Cyano-3-Methyl- (9Ci)
CAS No.	269401-38-9
Molecular Formula	C6H3ClN2OS
Molecular Weight	186.62 g/mol
Synonyms	4-Cyano-3-methylisothiazole-5-carbonyl chloride; 3-Methyl-4-cyano-1,2-thiazole-5-carbonyl chloride; 4-Cyano-3-methyl-1,2-thiazole-5-carbonyl chloride; 3-Methyl-4-cyanoisothiazole-5-carbonyl chloride; 5-Carbonyl chloride-4-cyano-3-methylisothiazole; 4-CN-3-Me-isothiazole-5-COCl
EINECS	Contact for details

Quality Control

Our 5-Isothiazolecarbonyl Chloride, 4-Cyano-3-Methyl- (9Ci) is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, identity, and impurity profiles. Our quality systems are designed to meet the stringent requirements of GMP and ISO standards for advanced chemical intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation. Keep away from incompatible materials such as strong bases, oxidizing agents, and moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Single Unknown Impurity	≤ 0.5%

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