Description

3-Methyl-Thiophene-2-Sulfonic Acid is a specialized organic sulfonic acid derivative that serves as a critical building block in advanced chemical synthesis. Its value lies in its unique thiophene-sulfonic acid structure, which imparts desirable properties for creating functional molecules and materials. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop novel active ingredients or functional additives.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for molecules containing functionalized thiophene motifs.
• Agrochemical Synthesis: Used in the development of modern pesticides, herbicides, and fungicides where the sulfonic acid group enhances solubility or biological activity.
• Ligand and Catalyst Preparation: Serves as a starting material for creating specialized ligands and organocatalysts used in asymmetric synthesis and metal complexation.
• Polymer and Material Science: Incorporated into monomers or additives to impart sulfonic acid functionality, which can be used to create ion-exchange resins, conductive polymers, or surface-modifying agents.
• Dye and Pigment Manufacturing: Acts as an intermediate in the production of sulfur-containing dyes and functional pigments.
• Research and Development: A valuable reagent for academic and industrial R&D in medicinal chemistry and organic synthesis for exploring new chemical entities.

Basic Information

Product Name	3-Methyl-Thiophene-2-Sulfonic Acid
CAS No.	1159877-58-3
Molecular Formula	C5H6O3S2
Molecular Weight	178.23 g/mol
Synonyms	2-Thiophenesulfonic acid, 3-methyl-; 3-Methyl-2-thiophenesulfonic acid; 3-Methylthiophene-2-sulfonic acid; 3-Methylthiophene-2-sulphonic acid; 3-Methyl-2-thienylsulfonic acid
EINECS	Contact for details

Quality Control

Our 3-Methyl-Thiophene-2-Sulfonic Acid is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by NMR and IR spectroscopy, to ensure it meets the high standards required for synthetic applications. Certificates of Analysis (COA) detailing all specifications are provided with every shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area 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. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.