Description

2,5-Dichlorothiophene is a halogenated heterocyclic compound that serves as a versatile and critical building block in advanced organic synthesis. Its value lies in its ability to act as a precursor for complex molecules, particularly in the development of pharmaceuticals and functional materials. This intermediate is essential for researchers and manufacturers in the agrochemical, pharmaceutical, and specialty chemical industries seeking to create novel compounds with specific electronic or biological properties.

Application

• Pharmaceutical Intermediate: Key synthon for the production of active pharmaceutical ingredients (APIs), especially those containing thiophene scaffolds.
• Agrochemical Synthesis: Used in the manufacture of herbicides, fungicides, and insecticides where the dichlorothiophene moiety imparts specific biological activity.
• Material Science: Serves as a monomer or precursor for conducting polymers, organic semiconductors, and other electronic materials.
• Dye and Pigment Industry: Intermediate in the synthesis of complex dyes and organic pigments.
• Ligand and Catalyst Development: Used to create specialized ligands for metal catalysis in fine chemical production.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new chemical entities and reaction pathways.

Basic Information

Product Name	2,5-Dichlorothiophene
CAS No.	3172-52-9
Molecular Formula	C4H2Cl2S
Molecular Weight	153.03 g/mol
Synonyms	2,5-Dichlorothiophene; Thiophene, 2,5-dichloro-; 2,5-DCT; NSC 404080; 2,5-Dichloro-thiophene; 2,5-Dichlorothiofuran; 2,5-Dichloro-1-thia-2,4-cyclopentadiene
EINECS	221-647-5

Quality Control

Our 2,5-Dichlorothiophene is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including chromatography (HPLC/GC) and spectroscopic methods, to verify identity and purity. A Certificate of Analysis (COA) detailing all test results is provided with every shipment. We adhere to cGMP principles where applicable to support our customers in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and bases. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to prevent contamination and moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Density (at 20°C)	~1.45 g/cm³
Boiling Point	~195-197 °C

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