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Triphenyl ethyl phosphorus bromide, also known as ethyl triphenyl phosphine bromide (CAS 1530-32-1), is an important intermediate in organic synthesis. It is white crystalline powder.We provide high quality ETPB with purity 99.5% min.Ethyltriphenylphosphonium bromide is widely used in fields such as organic synthesis, pharmaceutical synthesis, and materials science. For example, it can be used as a phase transfer catalyst, a Lewis acid catalyst, and ionic liquids. Additionally, it can also be used in the synthesis of liquid crystal materials, polymer materials, and so on.link:http://www.koyonchem.com