Description

5-n-Octylthiophene-2-Carboxylic Acid is a high-purity, functionalized thiophene derivative serving as a critical building block in advanced material synthesis. Its value lies in the unique combination of a conjugated thiophene core with a long alkyl chain and a carboxylic acid functional group, enabling precise tuning of electronic and self-assembly properties. This compound is essential for researchers and manufacturers in the organic electronics, specialty polymer, and pharmaceutical intermediates sectors.

Application

• Organic Semiconductor Precursor: A key monomer for synthesizing conjugated polymers and small molecules used in Organic Field-Effect Transistors (OFETs) and Organic Photovoltaics (OPVs).
• Liquid Crystal & Self-Assembled Monolayer (SAM) Component: The octyl chain promotes ordering, while the acid group allows for surface attachment, useful in display technology and sensor development.
• Pharmaceutical Intermediate: Serves as a versatile synthon in medicinal chemistry for creating novel drug candidates with potential biological activity.
• Functional Dye & Pigment Synthesis: Used to construct chromophores with specific solubility and electronic characteristics for advanced coatings and imaging.
• Metal-Organic Framework (MOF) & Coordination Polymer Linker: The carboxylic acid group acts as a ligand for constructing porous materials for catalysis or gas storage.
• Corrosion Inhibitor Formulation: The thiophene moiety can contribute to the development of specialized inhibitors for industrial applications.

Basic Information

Product Name	5-n-Octylthiophene-2-Carboxylic Acid
CAS No.	90619-88-8
Molecular Formula	C₁₃H₂₀O₂S
Molecular Weight	240.36 g/mol
Synonyms	5-Octylthiophene-2-carboxylic acid; 2-Thiophenecarboxylic acid, 5-octyl-; 5-Octyl-2-thiophenecarboxylic acid; 2-Carboxy-5-octylthiophene; Octylthiophene carboxylic acid; 5-n-Octyl-2-thiophenecarboxylic acid; 5-Octylthiophene-2-carboxylate
EINECS	Contact for details

Quality Control

Every batch of 5-n-Octylthiophene-2-Carboxylic Acid is produced and tested under a strict quality management system. We employ advanced analytical techniques including HPLC, GC, NMR, and mass spectrometry to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment to support your R&D and quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (typically 15-25°C). Keep away from strong oxidizing agents and bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
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.