Description

2-Cyclopropylethyl Bromide is a versatile alkyl bromide building block featuring a reactive bromoethyl chain attached to a cyclopropyl ring. This compound matters for its ability to introduce the cyclopropylethyl moiety into more complex molecular architectures, a valuable function in advanced synthetic chemistry. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for constructing novel active ingredients and functional intermediates.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel active pharmaceutical ingredients (APIs), particularly those targeting central nervous system (CNS) disorders and infectious diseases.
• Agrochemical Synthesis: Used in the preparation of advanced herbicides, fungicides, and insecticides where the cyclopropyl group enhances biological activity and stability.
• Ligand and Catalyst Development: Serves as a precursor for creating specialized phosphine ligands or organometallic catalysts used in asymmetric synthesis.
• Material Science Research: Employed in the development of organic semiconductors, liquid crystals, and polymers with unique electronic or structural properties.
• Chemical Biology Probes: Useful for labeling or modifying biomolecules to study biological pathways and protein functions.
• Cross-Coupling Reactions: Acts as an electrophilic partner in Suzuki, Negishi, and other palladium-catalyzed cross-coupling reactions to form carbon-carbon bonds.

Basic Information

Product Name	2-Cyclopropylethyl Bromide
CAS No.	36982-56-6
Molecular Formula	C5H9Br
Molecular Weight	149.03 g/mol
Synonyms	(2-Bromoethyl)cyclopropane; Cyclopropylethyl Bromide; 1-Bromo-2-cyclopropylethane; 2-Cyclopropylethylbromide; Bromomethylcyclopropane (isomer); Cyclopropane, (2-bromoethyl)-; (β-Bromoethyl)cyclopropane
EINECS	Contact for details

Quality Control

Our 2-Cyclopropylethyl Bromide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC, NMR, and Karl Fischer titration, to ensure high purity and consistency. Certificates of Analysis (COA) with detailed specifications are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong acids, bases, and oxidizing agents. Due to its nature as a strong acid/organic solvent, ensure containers are kept tightly sealed to prevent moisture ingress and volatilization.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.4780 - 1.4820
Density (g/mL, 20°C)	1.35 - 1.39

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