Description

2-(5-Bromo-2-Thienyl)-3-Chloroquinoxaline is a high-purity, halogenated quinoxaline derivative, a crucial heterocyclic building block in advanced organic synthesis. This compound matters for its role as a key intermediate in the development of pharmaceuticals, agrochemicals, and functional materials, enabling the creation of complex molecular architectures. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for constructing novel active compounds and electronic materials.

Application

• Pharmaceutical Intermediate: Serves as a critical precursor in the synthesis of novel drug candidates, particularly in developing kinase inhibitors, antiviral agents, and other biologically active heterocycles.
• Agrochemical Research: Used in the discovery and development of new-generation pesticides, herbicides, and fungicides due to its bioactive quinoxaline core.
• Material Science: Acts as a building block for organic semiconductors, OLED (Organic Light-Emitting Diode) materials, and other electronic chemicals where the thienyl-quinoxaline structure contributes to charge transport properties.
• Chemical Synthesis: Employed in cross-coupling reactions (e.g., Suzuki, Stille) and as a versatile scaffold for constructing complex polycyclic aromatic systems in academic and industrial research.
• Dye and Pigment Intermediate: Utilized in the synthesis of specialized dyes and pigments where the quinoxaline moiety provides color and stability.

Basic Information

Product Name	2-(5-Bromo-2-Thienyl)-3-Chloroquinoxaline
CAS No.	66078-66-8
Molecular Formula	C12H6BrClN2S
Molecular Weight	325.61 g/mol
Synonyms	3-Chloro-2-(5-bromo-2-thienyl)quinoxaline; 2-(5-Bromothiophen-2-yl)-3-chloroquinoxaline; Quinoxaline, 2-(5-bromo-2-thienyl)-3-chloro-; 66078-66-8; 3-Chloro-2-(5-bromothien-2-yl)quinoxaline
EINECS	Contact for details

Quality Control

Our 2-(5-Bromo-2-Thienyl)-3-Chloroquinoxaline is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR/IR for structural confirmation, to ensure compliance with exacting R&D and process chemistry standards. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Keep away from incompatible materials. The product is light-sensitive and should be stored away from light as indicated.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (Area %)
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.