Description

4-Chloro-5-Ethyl-2-Thiophenecarboxaldehyde is a high-purity, functionalized thiophene derivative serving as a critical building block in advanced organic synthesis. This compound matters for its role as a versatile aldehyde intermediate, enabling the construction of complex heterocyclic systems and functional materials. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for creating novel active ingredients and specialty chemicals.

Application

• Pharmaceutical Intermediate: Key synthon for the development of novel drug candidates, particularly in central nervous system (CNS) and anti-infective therapeutic areas.
• Agrochemical Synthesis: Used in the research and production of new-generation herbicides, fungicides, and insecticides with improved efficacy.
• Material Science Precursor: Serves as a monomer or functional unit in the synthesis of conductive polymers, organic semiconductors, and non-linear optical (NLO) materials.
• Ligand and Catalyst Development: Employed to create novel chelating ligands and organocatalysts for asymmetric synthesis and transition metal catalysis.
• Chemical Research (R&D): A valuable reagent for method development and exploring new chemical spaces in academic and industrial laboratories.
• Dye and Pigment Intermediate: Used in the synthesis of specialized thiophene-based colorants and fluorescent markers.

Basic Information

Product Name	4-Chloro-5-Ethyl-2-Thiophenecarboxaldehyde
CAS No.	842135-11-9
Molecular Formula	C7H7ClOS
Molecular Weight	174.65 g/mol
Synonyms	4-Chloro-5-ethylthiophene-2-carbaldehyde; 5-Ethyl-4-chlorothiophene-2-carboxaldehyde; 2-Formyl-4-chloro-5-ethylthiophene; 4-Chloro-5-ethyl-2-thiophenecarbaldehyde; 4-Chloro-5-ethylthiophene-2-carboxaldehyde; 842135-11-9; 4-Chloro-5-ethyl-2-formylthiophene
EINECS	Contact for details

Quality Control

Our 4-Chloro-5-Ethyl-2-Thiophenecarboxaldehyde is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, NMR, and FTIR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical quality attributes. Our commitment to cGMP and ISO guidelines ensures the material meets the stringent requirements for pharmaceutical and advanced chemical synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. The compound is light-sensitive; containers should be opaque or stored in darkness. For long-term storage, consider under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Off-white to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 1.0%
Total Impurities (HPLC)	≤ 3.0%

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