Description

3-Bromo-2-Thienylmagnesium Bromide is a highly reactive organometallic reagent, specifically a Grignard reagent, essential for forming new carbon-carbon bonds in complex organic syntheses. Its value lies in providing a versatile 3-bromo-2-thienyl building block, enabling the precise introduction of functionalized thiophene rings into target molecules. This compound is critically needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors for constructing novel active ingredients and electronic materials.

Application

• Pharmaceutical Intermediate Synthesis: Key for constructing thiophene-containing scaffolds in drug discovery and development of active pharmaceutical ingredients (APIs).
• Agrochemical Manufacturing: Used in the synthesis of novel herbicides, fungicides, and insecticides that incorporate halogenated thiophene motifs.
• Organic Electronic Materials: Serves as a precursor for conjugated polymers and small molecules used in organic light-emitting diodes (OLEDs), field-effect transistors (OFETs), and solar cells.
• Ligand and Catalyst Development: Employed to create specialized thiophene-based ligands for transition metal catalysis.
• Fine Chemical and Specialty Chemical Production: A versatile building block for synthesizing complex molecules in custom synthesis and contract manufacturing.
• Academic and Industrial Research: Fundamental reagent for methodological development and exploring new reaction pathways in organometallic chemistry.

Basic Information

Product Name	3-Bromo-2-Thienylmagnesium Bromide
CAS No.	119277-44-0
Molecular Formula	C4H2Br2MgS
Molecular Weight	266.24 g/mol
Synonyms	3-Bromo-2-thienylmagnesium bromide; 3-Bromothiophen-2-ylmagnesium bromide; Magnesium, bromo(3-bromo-2-thienyl)-; (3-Bromo-2-thienyl)magnesium bromide; 2-Thienylmagnesium bromide, 3-bromo-; Grignard reagent 3-Bromo-2-thienyl; 3-Bromo-2-thienyl Grignard reagent
EINECS	Contact for details

Quality Control

Our 3-Bromo-2-Thienylmagnesium Bromide is manufactured under stringent quality systems. Each batch undergoes rigorous analytical testing, including titration for active Grignard concentration and GC/HPLC analysis for purity and solvent content, to ensure consistency and reliability for your synthetic workflows. Certificates of Analysis (COA) detailing batch-specific results are available upon request, supporting compliance in regulated environments.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly reactive, moisture-sensitive, and pyrophoric nature, this reagent must be stored under an inert atmosphere (argon or nitrogen) at recommended temperatures, typically between 2°C and 8°C for extended stability. Handle and store away from moisture, air, and incompatible materials.

Specification

Item	Specification
Appearance	Clear solution, typically brown to dark brown
Concentration (in THF or Ether)	0.5 M - 1.0 M (Custom concentrations available)
Assay (by Titration)	≥ 95%
Solvent	Specified (Tetrahydrofuran, Diethyl ether, or 2-MeTHF)

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