Description

5-Chloro-2,1,3-Benzothiadiazole-4-Sulfonyl Chloride(Saltdata: Free) is a high-purity, reactive sulfonyl chloride derivative, serving as a critical building block in advanced organic synthesis. Its primary value lies in its ability to act as a versatile electrophilic reagent for introducing the sulfonamide or sulfonate functional group, enabling the creation of complex molecules with tailored properties. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, particularly in the development of active ingredients, dyes, and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, especially those containing benzothiadiazole or sulfonamide moieties for therapeutic applications.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and insecticides, where the sulfonyl chloride group facilitates the creation of potent active ingredients.
• Functional Dye & Pigment Manufacturing: Serves as a building block for creating specialized dyes and pigments with enhanced light-fastness and color properties.
• Material Science Research: Employed in the development of organic electronic materials, such as semiconductors and light-emitting materials, due to the electron-accepting nature of the benzothiadiazole core.
• Cross-Coupling Reactions: Acts as a substrate in palladium-catalyzed cross-coupling reactions (e.g., Suzuki, Stille) to construct complex biaryl systems.
• Polymer Modification: Utilized to functionalize polymers by introducing sulfonamide groups, altering solubility, thermal stability, or biological activity.

Basic Information

Product Name	5-Chloro-2,1,3-Benzothiadiazole-4-Sulfonyl Chloride(Saltdata: Free)
CAS No.	100130-48-1
Molecular Formula	C6H2Cl2N2O2S2
Molecular Weight	285.13 g/mol
Synonyms	4-Chloro-7-sulfonylchloride-2,1,3-benzothiadiazole; 5-Chloro-2,1,3-benzothiadiazole-4-sulfonyl chloride; 2,1,3-Benzothiadiazole-4-sulfonyl chloride, 5-chloro-; 4-Chloro-2,1,3-benzothiadiazole-7-sulfonyl chloride; 5-Chloro-benzo[1,2,5]thiadiazole-4-sulfonyl chloride; BT-SO2Cl; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our 5-Chloro-2,1,3-Benzothiadiazole-4-Sulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high chemical purity and identity confirmation. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are provided with every shipment to guarantee consistency and compliance with your research and production specifications.

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); ensure the container is sealed under an inert atmosphere (e.g., nitrogen or argon) after each use to prevent degradation. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases, amines, and alcohols.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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