Description

3-Thiophenecarboxaldehyde, 5-Ethyl-4-Methyl- (9Ci) is a specialized heterocyclic aldehyde building block of significant interest in advanced organic synthesis. Its value lies in its unique thiophene core, which is a privileged scaffold for developing materials with specific electronic and photophysical properties. This compound is primarily needed by research and development chemists in the pharmaceutical and agrochemical industries, as well as in materials science for the creation of novel functional molecules.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system disorders or possessing anti-inflammatory activity.
• Agrochemical Synthesis: Used in the development of new generation pesticides and herbicides, where the thiophene moiety can enhance biological activity and environmental profile.
• Organic Electronic Materials: Acts as a fundamental building block 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 preparation of specialized ligands for transition metal catalysis, enabling novel synthetic transformations.
• Chemical Research & Development: Utilized in academic and industrial R&D settings for exploring new chemical spaces and reaction methodologies involving heterocyclic aldehydes.
• Flavor & Fragrance Chemistry: May serve as a starting material for synthesizing complex sulfur-containing aroma compounds, subject to purity and regulatory compliance.

Basic Information

Product Name	3-Thiophenecarboxaldehyde, 5-Ethyl-4-Methyl- (9Ci)
CAS No.	159144-72-6
Molecular Formula	C8H10OS
Molecular Weight	154.23 g/mol
Synonyms	5-Ethyl-4-methylthiophene-3-carbaldehyde; 4-Methyl-5-ethyl-3-thiophenecarboxaldehyde; 3-Formyl-5-ethyl-4-methylthiophene; 5-Ethyl-4-methyl-3-thiophenecarbaldehyde; 5-Ethyl-4-methylthiophene-3-carboxaldehyde
EINECS	Contact for details

Quality Control

We maintain stringent quality control protocols for our fine chemical intermediates. Production follows cGMP principles where applicable, and each batch is analyzed using advanced techniques like GC, HPLC, and NMR to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment. Our quality system is designed to meet the exacting standards of research and scale-up processes.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place. Recommended long-term storage temperature is 2-8°C. Allow the container to reach ambient temperature before opening to minimize moisture condensation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	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.