Description

β-Cyclopentylethyl Bromide is a versatile alkyl bromide intermediate prized for its utility in organic synthesis. Its value lies in the reactive bromine atom and the cyclopentyl moiety, enabling efficient carbon chain extension and functional group transformations. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries developing new active ingredients and complex molecules.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring a cyclopentyl-ethyl side chain.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and fungicides where the lipophilic cyclopentyl group enhances bioactivity.
• Organic Synthesis Reagent: Employed in alkylation reactions, Grignard reagent formation, and cross-coupling reactions (e.g., Suzuki, Negishi) to construct complex carbon frameworks.
• Ligand and Catalyst Development: Serves as a precursor for phosphine ligands and other organometallic catalysts used in asymmetric synthesis.
• Material Science Research: Utilized in the development of novel organic materials, liquid crystals, and specialty polymers.
• Flavor and Fragrance Industry: Intermediate for the synthesis of specific aroma compounds and musk analogs.

Basic Information

Product Name	β-Cyclopentylethyl Bromide
CAS No.	18928-94-4
Molecular Formula	C7H13Br
Molecular Weight	177.08 g/mol
Synonyms	(2-Bromoethyl)cyclopentane; 2-Cyclopentylethyl Bromide; 2-Bromoethylcyclopentane; Cyclopentane, (2-bromoethyl)-; (β-Bromoethyl)cyclopentane; NSC 102627; (2-Cyclopentylethyl) bromide
EINECS	Contact for details

Quality Control

Every batch of β-Cyclopentylethyl Bromide is manufactured and tested under a strict quality management system. We ensure high purity and consistency through advanced analytical techniques including GC, HPLC, and NMR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to guarantee it meets your specific research or production requirements.

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 nature as a strong acid/organic solvent and highly volatile compound, keep away from heat, sparks, and open flame. Store separately from strong oxidizing agents and bases.

Specification

Item	Specification
Appearance	Clear colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.485 - 1.495
Density (g/mL, 20°C)	1.25 - 1.35

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