Description

2,1,3-Benzothiadiazole-5-Sulfonyl Chloride is a high-value sulfonyl chloride derivative and a key reactive intermediate in organic synthesis. Its primary value lies in its ability to act as a versatile electrophile for introducing the benzothiadiazole-sulfonyl moiety, a crucial functional group in advanced material science. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A critical building block for the synthesis of novel drug candidates, particularly in the development of kinase inhibitors and other small molecule therapeutics.
• Agrochemical Synthesis: Used in the research and production of next-generation herbicides, fungicides, and plant growth regulators.
• Functional Material Precursor: Serves as a key monomer or cross-linking agent in the creation of conjugated polymers and organic semiconductors for electronic devices.
• Dye and Pigment Manufacturing: Employed in the synthesis of specialized dyes and pigments with unique optical properties.
• Ligand and Sensor Development: Utilized to create complexing agents and molecular sensors for chemical detection and analysis.
• Polymer Modification: Acts as a grafting agent to introduce sulfonamide or sulfonate functionalities onto polymer backbones, altering solubility and reactivity.

Basic Information

Product Name	2,1,3-Benzothiadiazole-5-Sulfonyl Chloride
CAS No.	337508-60-8
Molecular Formula	C6H3ClN2O2S2
Molecular Weight	234.69 g/mol
Synonyms	2,1,3-Benzothiadiazole-5-sulfonyl chloride; Benzo[c][1,2,5]thiadiazole-5-sulfonyl chloride; 5-Chlorosulfonyl-2,1,3-benzothiadiazole; 2,1,3-Benzothiadiazole-5-sulfonchlorid; BTZ-SO2Cl; 1,2,5-Thiadiazolo[3,4-f]benzene-5-sulfonyl chloride
EINECS	Contact for details

Quality Control

Every batch of 2,1,3-Benzothiadiazole-5-Sulfonyl Chloride is produced and tested under strict quality management protocols to ensure consistency and reliability for your synthetic processes. Our standard grade meets high-purity specifications suitable for research and industrial applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and 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 strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 3.0%

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