Cyclopentyl Bromide (CAS 137-43-9) is a well-established organic compound that plays a significant role in various industrial chemical processes. Characterized by its cyclopentane ring structure bearing a bromine atom, this compound's utility stems from its reactivity, making it a sought-after intermediate in diverse synthesis applications. Understanding its fundamental properties, common manufacturing routes, and industrial uses provides valuable insight for professionals in the chemical sector.

Physically, Cyclopentyl Bromide typically presents as a clear, colorless to slightly yellowish liquid at room temperature. It possesses a characteristic odor often described as similar to camphor or other halogenated hydrocarbons. Its molecular formula is C5H9Br, with a molecular weight of approximately 149.03 g/mol. Key physical properties include a boiling point generally ranging from 137-139°C and a density around 1.39 g/mL at 25°C. While it is miscible with many common organic solvents like ethanol and ether, its solubility in water is limited, a trait common to many alkyl halides due to the hydrophobic nature of the hydrocarbon ring.

The synthesis of Cyclopentyl Bromide is primarily achieved through the bromination of cyclopentanol. A common industrial method involves reacting cyclopentanol with hydrobromic acid at elevated temperatures, followed by distillation and purification steps. Alternative methods might utilize phosphorus tribromide or other brominating agents. These synthesis routes are well-documented, allowing manufacturers to produce the compound efficiently and at high purity levels, often exceeding 99%.

Industrially, Cyclopentyl Bromide is primarily recognized as an organic synthesis intermediate. Its application as an alkylation reagent is paramount, facilitating the introduction of the cyclopentyl group into target molecules. This capability is extensively utilized in the pharmaceutical industry for the synthesis of APIs and drug intermediates, such as in the pathway towards Cyclothiazide. In the agrochemical sector, it serves as a foundational component for creating effective pesticides and herbicides. Beyond these primary roles, it can also function as a specialty solvent in specific formulations.

For businesses looking to purchase Cyclopentyl Bromide, sourcing from a reliable manufacturer, particularly in China, is often a cost-effective and strategic choice. These suppliers offer competitive pricing and ensure consistent product quality, vital for maintaining production integrity. Whether for intricate pharmaceutical synthesis or broader agrochemical applications, Cyclopentyl Bromide remains a cornerstone chemical intermediate, underscoring the importance of a stable and high-quality supply chain.