Description

3-Methyl-5-(Methylthio)-4-Vinylthiophene-2-Carboxylic Acid is a specialized heterocyclic building block featuring a unique thiophene core substituted with vinyl, methylthio, and carboxylic acid functional groups. This compound matters as a high-value intermediate for synthesizing advanced materials and active pharmaceutical ingredients (APIs), offering versatile reactivity for constructing complex molecular architectures. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors for applications in drug discovery and functional polymer synthesis.

Application

• Pharmaceutical Intermediate: A key synthon for the research and development of novel therapeutic agents, particularly in medicinal chemistry programs targeting new small molecule drugs.
• Agrochemical Synthesis: Used in the production of advanced crop protection agents and pesticides, leveraging its heterocyclic structure for biological activity.
• Material Science Research: Serves as a monomer or functional precursor in the development of conductive polymers, organic semiconductors, and other specialty materials.
• Chemical Research & Development: Employed as a versatile building block in organic synthesis for constructing complex thiophene-based molecules in academic and industrial labs.
• Ligand and Catalyst Development: The carboxylic acid and sulfur-containing groups make it a candidate for designing novel ligands in coordination chemistry and catalysis.

Basic Information

Product Name	3-Methyl-5-(Methylthio)-4-Vinylthiophene-2-Carboxylic Acid
CAS No.	175202-63-8
Molecular Formula	C9H10O2S2
Molecular Weight	214.31 g/mol
Synonyms	4-Vinyl-3-methyl-5-(methylthio)thiophene-2-carboxylic acid; 3-Methyl-5-methylthio-4-vinylthiophene-2-carboxylic acid; 2-Thiophenecarboxylic acid, 3-methyl-5-(methylthio)-4-vinyl-; 175202-63-8; 3-Methyl-5-(methylsulfanyl)-4-vinylthiophene-2-carboxylic acid
EINECS	Contact for details

Quality Control

Our 3-Methyl-5-(Methylthio)-4-Vinylthiophene-2-Carboxylic Acid is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets the high standards required for research and process chemistry. A Certificate of Analysis (COA) detailing specific results for identity, purity, and impurities is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in opaque packaging or amber glass.

Specification

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