CAS 13631-21-5 4-Bromo-3-chlorophenol Comprehensive Overview Its Properties Uses and Applications in Modern Research

CAS:13631-21-5 4-Bromo-3-chlorophenol, is an important halogenated phenol compound widely used in chemical research and industrial applications. It contains both bromine and chlorine atoms substituted on a phenol ring, which significantly influence its chemical reactivity, physical properties, and potential applications. As a halogenated phenolic compound, it exhibits high stability under standard laboratory conditions and demonstrates versatile behavior in various chemical reactions, making it an indispensable intermediate in organic synthesis and pharmaceutical research.

The molecular structure of 4-Bromo-3-chlorophenol contributes to its unique properties. The hydroxyl group attached to the benzene ring provides acidity and hydrogen bonding capability, allowing it to participate in condensation reactions, nucleophilic substitutions, and other functionalization processes. Meanwhile, the presence of bromine and chlorine atoms increases the compound’s electrophilicity and enables selective reactivity in complex chemical syntheses. This combination of functional groups allows chemists to employ 4-Bromo-3-chlorophenol as a precursor in the synthesis of bioactive molecules, agrochemicals, dyes, and specialty organic compounds.

In pharmaceutical research, CAS 13631-21-5 serves as a valuable building block for the development of novel drug candidates. Its halogenated phenolic structure can be further modified to create molecules with enhanced biological activity, improved pharmacokinetic profiles, or targeted therapeutic properties. Medicinal chemists often utilize this compound to design enzyme inhibitors, receptor modulators, and other pharmacologically active agents. Its stability, predictable reactivity, and compatibility with various reaction conditions make it a preferred choice for multistep synthetic routes and complex molecule construction.

Beyond pharmaceutical applications, 4-Bromo-3-chlorophenol is employed in material science and chemical industry for the synthesis of specialty chemicals and dyes. Its halogenated structure allows for functionalization into larger conjugated systems, which are often required in pigments, resins, and polymer additives. Additionally, it can serve as a key intermediate in the production of agrochemicals, such as herbicides and fungicides, where precise halogen substitution patterns are critical for bioactivity and environmental stability. Researchers also explore its potential in designing advanced materials with specific optical, electronic, or mechanical properties.

Handling and storage of 4-Bromo-3-chlorophenol are essential for maintaining its purity and ensuring laboratory safety. The compound should be stored in a cool, dry, and well-ventilated environment, away from strong oxidizing agents or incompatible chemicals. Standard laboratory protocols, including the use of personal protective equipment and proper waste disposal procedures, should be followed to minimize potential hazards. While generally stable, its phenolic hydroxyl group can undergo oxidation under harsh conditions, so appropriate care is necessary during long-term storage or extended reactions.

Analytical characterization of CAS 13631-21-5 is routinely performed using techniques such as nuclear magnetic resonance (NMR), infrared spectroscopy (IR), mass spectrometry (MS), and high-performance liquid chromatography (HPLC). These methods ensure high-purity verification, structural confirmation, and quality control for research and industrial applications. The combination of analytical techniques allows chemists to monitor reaction progress, identify impurities, and validate synthetic procedures with confidence.

In modern research, 4-Bromo-3-chlorophenol continues to be a versatile and widely used intermediate. Its role in organic synthesis, pharmaceuticals, material science, and agrochemical development highlights its significance as a reliable and functional halogenated phenol. As chemists develop new synthetic methodologies and explore innovative applications, the demand for high-quality 4-Bromo-3-chlorophenol remains strong. Its stability, reactivity, and broad applicability ensure that it will continue to play a crucial role in advancing chemical science and industrial innovation for years to come.