Description

1,3-Benzothiazole-4-Sulfonyl Chloride is a high-purity, reactive chemical intermediate essential for advanced organic synthesis. Its core value lies in its sulfonyl chloride functional group, which enables efficient derivatization and the construction of complex molecular architectures. This compound is critically needed by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the development of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of sulfonamide-based drug candidates, including protease inhibitors and receptor antagonists.
• Agrochemical Synthesis: Used in creating novel herbicides, fungicides, and insecticides with sulfonyl-containing bioactive cores.
• Material Science Research: Serves as a precursor for functionalized polymers, dyes, and advanced organic electronic materials.
• Chemical Biology & Proteomics: Employed as a reactive handle for bioconjugation and the development of activity-based probes targeting specific enzymes.
• Custom Synthesis & Contract Manufacturing: A critical starting material for custom synthesis houses serving the life sciences sector.

Basic Information

Product Name	1,3-Benzothiazole-4-Sulfonyl Chloride
CAS No.	149575-65-5
Molecular Formula	C7H4ClNO2S2
Molecular Weight	233.70 g/mol
Synonyms	4-Benzothiazolesulfonyl chloride; 1,3-Benzothiazole-4-sulfonyl chloride; Benzothiazole-4-sulfonyl chloride; 4-(Chlorosulfonyl)benzothiazole; 4-Benzothiazolylsulfonyl chloride; 4-Sulfonylchloride benzothiazole; 4-Chlorosulfonylbenzothiazole
EINECS	Contact for details

Quality Control

Our 1,3-Benzothiazole-4-Sulfonyl Chloride is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets the high standards required for research and process chemistry. Certificates of Analysis (COA) documenting all critical quality attributes are available upon request.

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). This product is hygroscopic (moisture-sensitive) and must be kept under anhydrous conditions. Use appropriate precautions for handling moisture-sensitive reagents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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