Description

3-Sulfinothiophene-2-Carboxylic Acid is a specialized heterocyclic building block of significant interest in advanced organic synthesis. This compound is valued for its unique sulfino and carboxylic acid functionalities, which enable its use as a key intermediate in the development of complex molecules. It is primarily sought after by research institutions and industrial R&D departments focused on pharmaceuticals, agrochemicals, and materials science.

Application

• Pharmaceutical Intermediate: Serves as a critical precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly those with thiophene-based scaffolds.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging its reactive sites for structural diversification.
• Material Science: Acts as a monomer or functionalizing agent in the creation of conductive polymers and advanced organic electronic materials.
• Chemical Synthesis: Employed as a versatile building block for constructing complex heterocyclic compounds in academic and industrial research laboratories.
• Ligand Synthesis: Useful for preparing specialized ligands for catalysis and metal-organic frameworks (MOFs).

Basic Information

Product Name	3-Sulfinothiophene-2-Carboxylic Acid
CAS No.	123016-79-5
Molecular Formula	C5H4O4S2
Molecular Weight	192.21 g/mol
Synonyms	2-Thiophenecarboxylic acid, 3-sulfino-; 3-Sulfino-2-thiophenecarboxylic acid; 2-Carboxy-3-sulfinothiophene; 3-Sulfinothiophene-2-carboxylic acid; Thiophene-2-carboxylic-3-sulfinic acid
EINECS	Contact for details

Quality Control

Our 3-Sulfinothiophene-2-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure it meets the high standards required for research and development applications. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) nature, store under an inert atmosphere such as nitrogen or argon in a cool, dry place. Recommended long-term storage temperature is 2-8°C. Allow the container to reach room temperature before opening to minimize moisture ingress.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%

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