For professionals in the chemical industry, a thorough understanding of a compound's properties and specifications is fundamental to its effective utilization. 4-Bromostyrene, identified by CAS number 2039-82-9, is a key pharmaceutical intermediate, and its detailed characteristics are vital for procurement managers and R&D scientists. This article provides an in-depth look at what makes this compound so valuable and what specifications to look for when you buy.

Chemical Identity and Structure: 4-Bromostyrene, also known by synonyms such as 1-(4-Bromophenyl)ethylene or 4-Vinyl-1-bromobenzene, possesses the molecular formula C8H7Br and a molecular weight of 183.04 g/mol. Its structure is characterized by a benzene ring substituted with a vinyl group at the para position relative to a bromine atom. This specific arrangement grants it unique reactivity, making it a sought-after intermediate.

Physical Properties: When sourcing 4-Bromostyrene, its appearance is typically described as a clear, slightly yellow to yellow liquid. Key physical data points important for handling and process design include its density, which is approximately 1.391 g/cm³, and its boiling point, measured at 214.3 °C at standard atmospheric pressure (760 mmHg). The flash point, noted at 86.7 °C, is also a critical parameter for safe storage and transportation.

Purity and Quality Assurance: The most critical specification for pharmaceutical intermediates is purity. Reputable manufacturers, such as NINGBO INNO PHARMCHEM CO.,LTD., offer 4-Bromostyrene with a minimum purity of 99%. This high level of purity ensures that the intermediate will perform as expected in sensitive synthesis pathways, minimizing unwanted side reactions and the formation of impurities in the final product. When you purchase from a trusted China supplier, you can expect consistent quality control.

Synonyms and Identification: Beyond its primary name and CAS number, understanding its various synonyms is beneficial for literature searches and cross-referencing. These include Styrene, p-bromo- (6CI, 7CI, 8CI), 1-Bromo-4-ethenylbenzene, Parabromostyrene, and p-Bromostyrene. EINECS number 218-022-6 also aids in its identification within European chemical inventories.

For companies seeking a reliable source of 4-Bromostyrene (CAS 2039-82-9), partnering with experienced manufacturers in China is a strategic decision. We provide comprehensive product data and competitive pricing for those looking to buy this essential chemical for their manufacturing and research needs.