Description

4,5-Dichloro-3-Methoxy-Thiophene-2-Carboxylic Acid is a high-purity, functionalized thiophene derivative serving as a critical building block in advanced organic synthesis. This compound is valued for its unique heterocyclic structure, which enables the construction of complex molecules with tailored electronic and steric properties. It is primarily utilized by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key synthon for the development of novel drug candidates, particularly in medicinal chemistry programs targeting various therapeutic areas.
• Agrochemical Synthesis: Building block for creating advanced pesticides, herbicides, and fungicides with enhanced efficacy and selectivity.
• Material Science Research: Precursor for the synthesis of functional polymers, conductive materials, and organic electronic components.
• Chemical Research & Development: Versatile starting material for method development, library synthesis, and exploring new chemical reactions in academic and industrial R&D labs.
• Ligand and Catalyst Design: Used to construct complex chelating ligands and organocatalysts for asymmetric synthesis and metal-catalyzed reactions.

Basic Information

Product Name	4,5-Dichloro-3-Methoxy-Thiophene-2-Carboxylic Acid
CAS No.	120715-49-3
Molecular Formula	C7H4Cl2O3S
Molecular Weight	239.08 g/mol
Synonyms	2-Carboxy-4,5-dichloro-3-methoxythiophene; 3-Methoxy-4,5-dichlorothiophene-2-carboxylic acid; 4,5-Dichloro-3-methoxy-2-thiophenecarboxylic acid; 2-Thiophenecarboxylic acid, 4,5-dichloro-3-methoxy-; Thiophene-2-carboxylic acid, 4,5-dichloro-3-methoxy-; 120715-49-3 (CAS); 4,5-Dichloro-3-methoxythiophene-2-carboxylic acid
EINECS	Contact for details

Quality Control

Our 4,5-Dichloro-3-Methoxy-Thiophene-2-Carboxylic Acid is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets the stringent requirements for research and process chemistry. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting all critical quality attributes.

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 after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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