Description

3-Thiophenecarboxylicacid,5-Ethyl-2-Isothiocyanato-,Ethylester(9Ci) CAS NO 109343-21-7 is a specialized heterocyclic building block featuring both a carboxylic acid ester and a reactive isothiocyanate functional group on a thiophene core. This unique molecular architecture makes it a critical intermediate for the synthesis of complex molecules in advanced research and development. It is primarily sought after by pharmaceutical, agrochemical, and materials science industries for creating novel compounds with targeted biological or electronic properties.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, particularly those targeting specific enzyme pathways.
• Agrochemical Research: Used in developing new active ingredients for herbicides, fungicides, and insecticides with improved efficacy.
• Ligand Synthesis: Employed in organometallic chemistry to create specialized ligands for catalysis and material science applications.
• Polymer & Material Science: Acts as a monomer or functionalizing agent for creating polymers with unique conductive or optical properties.
• Chemical Biology Probes: Utilized to develop isothiocyanate-based probes for labeling and studying biological molecules.
• Organic Synthesis Building Block: Provides a versatile scaffold for constructing complex heterocyclic systems in academic and industrial R&D.

Basic Information

Product Name	3-Thiophenecarboxylicacid,5-Ethyl-2-Isothiocyanato-,Ethylester(9Ci)
CAS No.	109343-21-7
Molecular Formula	C10H11NO2S2
Molecular Weight	241.33 g/mol
Synonyms	5-Ethyl-2-isothiocyanatothiophene-3-carboxylic acid ethyl ester; Ethyl 5-ethyl-2-isothiocyanatothiophene-3-carboxylate; 2-Isothiocyanato-5-ethyl-3-thiophenecarboxylic Acid Ethyl Ester; 3-Thiophenecarboxylic acid, 5-ethyl-2-isothiocyanato-, ethyl ester; 109343-21-7; 5-Ethyl-2-isothiocyanato-3-thiophenecarboxylic acid ethyl ester; Thiophene-3-carboxylic acid, 5-ethyl-2-isothiocyanato-, ethyl ester
EINECS	Contact for details

Quality Control

Our 3-Thiophenecarboxylicacid,5-Ethyl-2-Isothiocyanato-,Ethylester(9Ci) is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity for research and development applications. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). The compound is moisture-sensitive (hygroscopic) and should be handled under an inert atmosphere for long-term storage to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.