Description

4-Methyl-5-(4-Methylphenyl)Thiophene-2-Carboxylic Acid is a high-purity, functionalized thiophene derivative serving as a critical building block in advanced organic synthesis. Its value lies in its unique molecular structure, which provides a versatile scaffold for constructing complex molecules in pharmaceutical and materials science research. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries who require reliable, high-quality intermediates for developing new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and inflammatory diseases.
• Agrochemical Synthesis: Used in the research and development of new-generation pesticides and herbicides, leveraging the thiophene core for bioactivity.
• Organic Electronic Materials: Serves as a monomer or dopant in the development of conductive polymers, organic semiconductors, and OLED (Organic Light-Emitting Diode) materials.
• Ligand and Catalyst Development: The carboxylic acid functionality allows it to be used in constructing complex ligands for catalysis and metal-organic frameworks (MOFs).
• Chemical Research & Development: A versatile building block for academic and industrial R&D focused on heterocyclic chemistry and structure-activity relationship (SAR) studies.
• Dye and Pigment Intermediate: Employed in the synthesis of specialized dyes and pigments where the thiophene ring enhances color fastness and spectral properties.

Basic Information

Product Name	4-Methyl-5-(4-Methylphenyl)Thiophene-2-Carboxylic Acid
CAS No.	832737-68-5
Molecular Formula	C13H12O2S
Molecular Weight	232.30 g/mol
Synonyms	5-(p-Tolyl)-4-methylthiophene-2-carboxylic acid; 2-Thiophenecarboxylic acid, 4-methyl-5-(4-methylphenyl)-; 4-Methyl-5-(p-tolyl)thiophene-2-carboxylic acid; 5-(4-Methylphenyl)-4-methyl-2-thiophenecarboxylic acid; 4-Methyl-5-(4-methylphenyl)-2-thiophenecarboxylic acid; 4-Methyl-5-(p-methylphenyl)thiophene-2-carboxylic acid; 832737-68-5 (CAS Name)
EINECS	Contact for details

Quality Control

Our production of 4-Methyl-5-(4-Methylphenyl)Thiophene-2-Carboxylic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. Each lot undergoes comprehensive analytical testing, including HPLC, NMR, and mass spectrometry, to verify identity and assay. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment, ensuring full traceability and compliance with your research or manufacturing requirements.

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. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0% Any single impurity ≤ 0.5%

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