Description

4-Ethyl-[1,2,3]Thiadiazole-5-Carbonyl Chloride is a highly reactive and versatile acyl chloride derivative, serving as a critical building block in advanced organic synthesis. Its core value lies in enabling the efficient introduction of the 4-ethyl-[1,2,3]thiadiazole moiety into target molecules, a heterocyclic structure of significant interest in medicinal and agrochemical research. This intermediate is essential for researchers and manufacturers developing novel active pharmaceutical ingredients (APIs), crop protection agents, and functional materials who require a reliable supply of high-purity synthetic precursors.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly those targeting infectious diseases or metabolic disorders.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and insecticides where the thiadiazole ring system imparts biological activity.
• Chemical Research & Development: A versatile reagent for constructing complex heterocyclic scaffolds in academic and industrial R&D laboratories.
• Material Science Precursor: Potential monomer or functionalization agent for creating polymers with specific electronic or photophysical properties.
• Peptide & Bio-conjugation Chemistry: Employed to introduce the thiadiazole group into peptides or other biomolecules for labeling or activity modulation.

Basic Information

Item	Details
Product Name	4-Ethyl-[1,2,3]Thiadiazole-5-Carbonyl Chloride
CAS No.	889939-72-4
Molecular Formula	C5H5ClN2OS
Molecular Weight	176.62 g/mol
Synonyms	4-Ethyl-1,2,3-thiadiazole-5-carbonyl chloride; 4-Ethyl-1,2,3-thiadiazole-5-carboxylic acid chloride; 5-(Chlorocarbonyl)-4-ethyl-1,2,3-thiadiazole; 4-Ethyl-1,2,3-thiadiazole-5-carboxyl chloride; 4-Ethyl-δ²-1,2,3-thiadiazoline-5-carbonyl chloride
EINECS	Contact for details

Quality Control

Every batch of 4-Ethyl-[1,2,3]Thiadiazole-5-Carbonyl Chloride is manufactured and tested under strict quality management systems. We ensure compliance with relevant industry standards for fine chemical intermediates. Comprehensive analytical testing, including HPLC, GC, and NMR, is performed to verify identity, purity, and consistency. A Certificate of Analysis (COA) detailing all specifications is provided with each shipment to guarantee traceability and meet your quality assurance requirements.

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 bases, oxidizing agents, and moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
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.