Description

5-(4-Methoxyphenyl)-2-Thiophenecarboxylic Acid is a high-value, multi-functional heterocyclic building block and intermediate. This compound is critical for the synthesis of complex organic molecules, particularly in advanced pharmaceutical and materials science research. It is primarily sought after by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for constructing novel active compounds and functional materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in therapeutic areas targeting CNS disorders, inflammation, and oncology.
• Agrochemical Synthesis: Used in the research and development of new-generation pesticides and herbicides, leveraging its unique thiophene-phenyl structure.
• Organic Electronic Materials: Serves as a precursor for conjugated polymers and small molecules used in organic light-emitting diodes (OLEDs) and organic photovoltaics (OPVs).
• Ligand and Catalyst Development: The carboxylic acid functionality allows for derivatization into chelating ligands for metal catalysis and coordination chemistry.
• Chemical Research & Development: A versatile scaffold for medicinal chemistry, enabling structure-activity relationship (SAR) studies and library synthesis.
• Specialty Polymer Additive: Potential use as a monomer or functional modifier to impart specific properties to high-performance polymers.

Basic Information

Product Name	5-(4-Methoxyphenyl)-2-Thiophenecarboxylic Acid
CAS No.	116016-56-9
Molecular Formula	C12H10O3S
Molecular Weight	234.27 g/mol
Synonyms	2-Thiophenecarboxylic acid, 5-(4-methoxyphenyl)-; 5-(4-Methoxyphenyl)thiophene-2-carboxylic acid; 5-(p-Methoxyphenyl)-2-thiophenecarboxylic acid; 4-Methoxyphenyl-2-thiophenecarboxylic acid; 5-(4-Methoxyphenyl)-2-thiophene carboxylic acid; 5-(4-Methoxyphenyl)thiophene-2-carboxylate; 116016-56-9
EINECS	Contact for details

Quality Control

Our 5-(4-Methoxyphenyl)-2-Thiophenecarboxylic Acid is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and residual solvent analysis. A Certificate of Analysis (COA) detailing all specifications and test results is provided with every shipment to ensure traceability and compliance with your research or production 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). The product is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 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.