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2-bromo-1-(4-hydroxyphenyl)propan-1-one; CAS No.: 53946-87-5; 2-bromo-1-(4-hydroxyphenyl)propan-1-one. PROPERTIES: 2-bromo-1-(4-hydroxyphenyl)propan-1-one is a white to off-white crystalline solid with a molecular formula of C9H8BrO2. It has a molecular weight of 246.06 g/mol and a melting point of approximately 112-115 C. The compound exhibits moderate solubility in water and is more soluble in polar organic solvents like methanol and acetone. It is sensitive to basic conditions and should be stored below 25 C in a tightly sealed container, protected from light. Safety precautions include using gloves and eye protection. It is classified as a category 2 eye irritant according to GHS classification. APPLICATIONS: 2-bromo-1-(4-hydroxyphenyl)propan-1-one is utilized in the pharmaceutical industry as a key intermediate in the synthesis of beta-blockers and other cardiovascular agents. Its bromine substituent provides a convenient handle for subsequent cross-coupling reactions. In the field of materials science, this compound serves as a building block for the preparation of nonlinear optical materials with improved performance characteristics. It is also employed in the synthesis of chiral auxiliaries for asymmetric synthesis applications, as documented in the journal Tetrahedron: Asymmetry. Additionally, the compound functions as a precursor for the preparation of fluorescent probes for detecting reactive oxygen species (ROS) in biological systems, where its phenolic hydroxyl group reacts with ROS to produce measurable fluorescence changes. Its unique electronic properties make it valuable in the development of novel electrochemical sensors for environmental monitoring applications.