Description

3-Thiophenecarboxaldehyde, 2-Ethyl- (9Ci) is a specialized heterocyclic aldehyde building block of significant interest in advanced organic synthesis. This compound matters for its role as a key precursor in the development of novel pharmaceuticals, agrochemicals, and functional materials, where its unique thiophene core imparts specific electronic and binding properties. Industries such as pharmaceutical R&D, agrochemical manufacturing, and material science require this high-purity intermediate for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of novel drug candidates, particularly in central nervous system (CNS) and anti-infective research.
• Agrochemical Synthesis: Used in the development of next-generation herbicides, fungicides, and insecticides that leverage the thiophene moiety for enhanced bioactivity.
• Material Science Precursor: Serves as a monomer or functionalizing agent in the production of conductive polymers, organic semiconductors, and non-linear optical (NLO) materials.
• Ligand and Catalyst Development: Employed in the creation of novel ligands for transition metal catalysis and organocatalysts for asymmetric synthesis.
• Flavor & Fragrance Chemistry: Acts as a starting material for synthesizing sulfur-containing aroma compounds with roasted, meaty, or savory notes.
• Chemical Research & Development: A versatile reagent for academic and industrial R&D exploring new heterocyclic chemistry and reaction methodologies.

Basic Information

Product Name	3-Thiophenecarboxaldehyde, 2-Ethyl- (9Ci)
CAS No.	156386-50-4
Molecular Formula	C7H8OS
Molecular Weight	140.20 g/mol
Synonyms	2-Ethyl-3-thiophenecarboxaldehyde; 2-Ethylthiophene-3-carbaldehyde; 3-Formyl-2-ethylthiophene; 2-Ethyl-3-formylthiophene; 2-Ethyl-3-thiophenecarbaldehyde; 2-Ethyl-3-thienylcarboxaldehyde; 2-Ethylthiophene-3-carboxaldehyde
EINECS	Contact for details

Quality Control

Our 3-Thiophenecarboxaldehyde, 2-Ethyl- (9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its properties of being easily oxidized and highly volatile, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) for long-term stability and to minimize evaporation and degradation.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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