Description

2-Chloro-5-Thiophenecarboxaldehyde is a versatile heterocyclic building block featuring both an aldehyde and a chloro substituent on the thiophene ring. This compound matters as a critical intermediate for synthesizing complex molecules in advanced material science and pharmaceutical research. It is primarily needed by R&D chemists and process development scientists in the agrochemical, pharmaceutical, and organic electronics industries for constructing novel compounds.

Application

• Pharmaceutical Intermediate: A key synthon for the development of active pharmaceutical ingredients (APIs), particularly in medicinal chemistry programs targeting novel therapeutic agents.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides, herbicides, and fungicides, leveraging its reactive sites for structural diversification.
• Material Science & Organic Electronics: Serves as a precursor for conjugated polymers and small molecules used in organic light-emitting diodes (OLEDs), organic photovoltaics (OPVs), and semiconductors.
• Ligand & Catalyst Development: Employed in the synthesis of specialized ligands for metal-organic frameworks (MOFs) and catalysts for cross-coupling reactions.
• Dye & Pigment Manufacturing: Acts as a building block for creating novel thiophene-based dyes and pigments with specific optical properties.
• Academic & Industrial Research: A valuable reagent for method development and exploring new chemical spaces in synthetic organic chemistry.

Basic Information

Product Name	2-Chloro-5-Thiophenecarboxaldehyde
CAS No.	7283-96-7
Molecular Formula	C5H3ClOS
Molecular Weight	146.59 g/mol
Synonyms	5-Chloro-2-thiophenecarboxaldehyde; 2-Chloro-5-formylthiophene; 2-Chlorothiophene-5-carboxaldehyde; 5-Chloro-2-thiophenecarbaldehyde; 2-Chloro-5-thiophenecarbaldehyde; 2-Chlorothiophene-5-carbaldehyde; 5-Chloro-2-thiophenecarboxaldehyde; 2-Chloro-5-thiophenecarbonal
EINECS	Contact for details

Quality Control

Our 2-Chloro-5-Thiophenecarboxaldehyde is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere for long-term preservation. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Light yellow to yellow crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	≤ 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.