Description

2-Thiophenecarboxaldehyde, 5-Bromo-3-(2-Ethylhexyl)- is a high-purity, specialty organic building block featuring a brominated thiophene core functionalized with an aldehyde group and a bulky 2-ethylhexyl side chain. This compound matters as a critical intermediate for advanced materials science, enabling the synthesis of novel conjugated polymers and small molecules with tailored electronic and optical properties. It is primarily needed by R&D chemists and process engineers in the organic electronics, pharmaceutical, and agrochemical sectors for developing next-generation semiconductors, OLED materials, and active pharmaceutical ingredients (APIs).

Application

• Organic Semiconductor Synthesis: A key monomer for constructing donor-acceptor (D-A) type conjugated polymers used in organic field-effect transistors (OFETs) and organic photovoltaics (OPVs).
• OLED Material Development: Serves as a precursor for electron-transporting or host materials in light-emitting diode (LED) applications due to its tunable HOMO/LUMO levels.
• Pharmaceutical Intermediates: Utilized in the synthesis of complex heterocyclic compounds with potential biological activity for drug discovery programs.
• Agrochemical Research: Employed as a building block for novel active ingredients requiring specific steric and electronic profiles.
• Ligand and Catalyst Design: The aldehyde functionality allows for the creation of novel Schiff base ligands for catalytic systems.
• Material Science R&D: Used in academic and industrial research to explore new π-conjugated systems for sensor and electronic applications.

Basic Information

Product Name	2-Thiophenecarboxaldehyde, 5-Bromo-3-(2-Ethylhexyl)-
CAS No.	2244901-23-1
Molecular Formula	C13H19BrOS
Molecular Weight	303.26 g/mol
Synonyms	5-Bromo-3-(2-ethylhexyl)thiophene-2-carbaldehyde; 5-Bromo-3-(2-ethylhexyl)-2-thiophenecarboxaldehyde; 3-(2-Ethylhexyl)-5-bromothiophene-2-carbaldehyde; 5-Bromo-3-(2-ethylhexyl)thiophene-2-carboxaldehyde; 2-Formyl-5-bromo-3-(2-ethylhexyl)thiophene; 5-Bromo-3-(2-ethylhexyl)thienyl-2-aldehyde
EINECS	Contact for details

Quality Control

Our 2-Thiophenecarboxaldehyde, 5-Bromo-3-(2-Ethylhexyl)- is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, NMR, and elemental analysis, to ensure high chemical purity and structural identity. Certificates of Analysis (COA) detailing all specifications are provided to guarantee batch-to-batch consistency and support your R&D and scale-up processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). The compound is light-sensitive and should be handled under an inert atmosphere for prolonged procedures to minimize potential degradation.

Specification

Item	Specification
Appearance	Yellow to amber liquid or low-melting solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.