Description

4-Formyl-2-Thiophenecarboxylic Acid is a versatile heterocyclic building block featuring both a formyl and a carboxylic acid functional group on a thiophene ring. This bifunctional nature makes it a critical intermediate for synthesizing complex molecules in advanced research and development. It is primarily sought after by pharmaceutical, agrochemical, and material science industries for constructing novel active compounds and functional materials.

Application

• Pharmaceutical Intermediate: A key synthon for the development of novel drug candidates, particularly in medicinal chemistry programs targeting various therapeutic areas.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides, herbicides, and fungicides due to its bioactive thiophene core.
• Organic Electronic Materials: Serves as a precursor for conjugated polymers and small molecules used in organic light-emitting diodes (OLEDs), organic photovoltaics (OPVs), and field-effect transistors (OFETs).
• Ligand and Catalyst Development: Employed in the synthesis of specialized ligands for metal catalysis and coordination chemistry.
• Chemical Research & Development: A valuable building block for creating libraries of novel heterocyclic compounds in academic and industrial R&D settings.
• Dye and Pigment Intermediate: Utilized in the synthesis of specialized dyes and pigments where the thiophene moiety imparts specific color or electronic properties.

Basic Information

Product Name	4-Formyl-2-Thiophenecarboxylic Acid
CAS No.	14282-66-7
Molecular Formula	C6H4O3S
Molecular Weight	156.16 g/mol
Synonyms	2-Formylthiophene-5-carboxylic Acid; 5-Formyl-2-thiophenecarboxylic Acid; 2-Thiophenecarboxylic acid, 4-formyl-; Thiophene-2,5-dicarboxaldehyde (misnomer, but commonly searched); 4-Carboxy-2-thiophenecarboxaldehyde; 2-Formyl-5-thiophenecarboxylic Acid; 5-Carboxythiophene-2-carboxaldehyde
EINECS	Contact for details

Quality Control

Our 4-Formyl-2-Thiophenecarboxylic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing specifications such as assay (HPLC), identity (IR, NMR), and impurity profiles is provided with every shipment to guarantee it meets your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This compound may be light-sensitive and hygroscopic; appropriate handling to minimize exposure to moisture and prolonged light is recommended.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (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.