Description

2,1,3-Benzothiadiazole-5-Carbonyl Chloride is a high-purity, reactive chemical intermediate essential for advanced synthesis. Its core value lies in its role as a versatile building block for constructing complex heterocyclic systems, particularly in the development of functional materials and active pharmaceutical ingredients. This compound is critically needed by research and development chemists and process engineers in the pharmaceutical, agrochemical, and materials science industries for creating novel compounds with specific electronic or biological properties.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly those targeting specific enzyme pathways.
• Agrochemical Synthesis: Building block for creating advanced herbicides, fungicides, and insecticides with enhanced efficacy.
• Organic Electronic Materials: Crucial monomer for constructing conjugated polymers and small molecules used in OLEDs, organic photovoltaics (OPVs), and field-effect transistors (OFETs).
• Ligand and Catalyst Development: Used to prepare specialized ligands for metal complexes in catalytic applications.
• Fluorescent Dye and Sensor Fabrication: Serves as a core component in synthesizing benzothiadiazole-based fluorophores for bio-imaging and chemical sensing.
• Polymer Modification: Enables the functionalization of polymer backbones to introduce specific electronic or solubility properties.

Basic Information

Product Name	2,1,3-Benzothiadiazole-5-Carbonyl Chloride
CAS No.	321309-31-3
Molecular Formula	C7H3ClN2OS
Molecular Weight	198.63 g/mol
Synonyms	5-Carboxybenzothiadiazole Chloride; Benzothiadiazole-5-carbonyl chloride; 2,1,3-Benzothiadiazole-5-carboxylic acid chloride; 1,2,3-Benzothiadiazole-5-carbonyl Chloride; BTZ-COCl; 5-(Chlorocarbonyl)benzo[c][1,2,5]thiadiazole; 2,1,3-Benzothiadiazol-5-yl carbonyl chloride
EINECS	Contact for details

Quality Control

Our 2,1,3-Benzothiadiazole-5-Carbonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and FTIR, to ensure high purity and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical parameters. Our quality commitment aligns with cGMP principles for pharmaceutical intermediates, ensuring reliability for your most demanding synthesis workflows.

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 and 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 bases and oxidizing agents.

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%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Solubility	Soluble in common organic solvents (DMF, THF, DCM)

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