Description

5-Benzothiazolecarbonyl Chloride, 2-Methyl- (9Ci) is a specialized organic intermediate featuring a reactive acid chloride group on a benzothiazole scaffold. This compound matters as a critical building block for synthesizing more complex molecules, particularly in advanced material and pharmaceutical research. It is primarily needed by R&D chemists and process development scientists in the agrochemical, pharmaceutical, and specialty chemical industries for constructing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel benzothiazole-based drug candidates, particularly for central nervous system (CNS) and oncology targets.
• Agrochemical Synthesis: Used to construct active ingredients for crop protection agents, such as fungicides and herbicides, leveraging the benzothiazole moiety's bioactivity.
• Material Science Research: Serves as a monomer or coupling agent in the development of advanced polymers, liquid crystals, and organic electronic materials.
• Dye and Pigment Manufacturing: Intermediate for producing specialized heterocyclic dyes and fluorescent markers.
• Chemical Biology Probes: Utilized in creating labeled compounds and activity-based probes for studying enzyme function and biological pathways.
• Custom Synthesis and Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for client-specific synthesis projects.

Basic Information

Item	Details
Product Name	5-Benzothiazolecarbonyl Chloride, 2-Methyl- (9Ci)
CAS No.	573983-14-9
Molecular Formula	C9H6ClNOS
Molecular Weight	211.67 g/mol
Synonyms	2-Methyl-5-benzothiazolecarbonyl chloride; 2-Methylbenzothiazole-5-carbonyl chloride; 5-(Chlorocarbonyl)-2-methylbenzothiazole; 2-Methyl-1,3-benzothiazole-5-carbonyl chloride; 2-Methylbenzo[d]thiazole-5-carbonyl chloride
EINECS	Contact for details

Quality Control

Our 5-Benzothiazolecarbonyl Chloride, 2-Methyl- (9Ci) is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and NMR/IR for structural confirmation, to ensure it meets the high standards required for research and development. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory needs.

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 and reactivity as an acid chloride, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis and degradation. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 1.0%; Total impurities ≤ 3.0%

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