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Comprehensive Overview of Ethyl 4-Amino-2-Bromobenzoate (CAS No. 109098-70-6): Properties, Applications, and Industry Insights

Ethyl 4-amino-2-bromobenzoate (CAS No. 109098-70-6) is a specialized organic compound widely recognized in pharmaceutical and agrochemical research. This brominated benzoate derivative features a unique molecular structure combining an ethyl ester group, an amino substituent, and a bromine atom, making it valuable for synthesizing complex molecules. Its chemical formula C9H10BrNO2 and molecular weight of 244.09 g/mol position it as a versatile intermediate in modern organic synthesis.

Recent trends in drug discovery and crop protection chemicals have driven increased interest in this compound. Researchers frequently search for "ethyl 4-amino-2-bromobenzoate synthesis," "109098-70-6 applications," and "brominated aromatic compounds in medicine," reflecting its growing importance. The compound's dual functional groups enable diverse reactions, including amide coupling, Buchwald-Hartwig amination, and palladium-catalyzed cross-coupling, aligning with current demands for green chemistry and atom-efficient processes.

From a physicochemical perspective, ethyl 4-amino-2-bromobenzoate typically appears as a white to off-white crystalline powder with a melting point range of 98-102°C. Its solubility profile—soluble in polar organic solvents like methanol and dimethyl sulfoxide (DMSO) but insoluble in water—makes it particularly useful for heterogeneous catalysis systems. Analytical techniques such as HPLC, NMR spectroscopy, and mass spectrometry are commonly employed for purity verification, with commercial samples often exceeding 97% purity.

The compound's structure-activity relationship has gained attention in medicinal chemistry circles, particularly for designing kinase inhibitors and GPCR-targeted compounds. Its electron-rich aromatic system facilitates π-stacking interactions in biological systems, while the bromine atom serves as an excellent handle for transition metal-catalyzed reactions. These properties address the pharmaceutical industry's need for diverse chemical scaffolds in high-throughput screening programs.

In material science applications, CAS 109098-70-6 has shown promise as a precursor for organic electronic materials. The amino group allows for further functionalization to create conducting polymers or photoactive materials, responding to growing demands in optoelectronics and sustainable energy solutions. Patent literature reveals its utility in developing OLED intermediates and molecular sensors, particularly where tunable fluorescence properties are required.

Quality control of ethyl 4-amino-2-bromobenzoate follows stringent protocols, with manufacturers focusing on residual solvent levels, heavy metal content, and isomeric purity. The compound's stability under inert atmospheres and recommended storage at 2-8°C ensure long-term usability, factors critically important for laboratories implementing just-in-time inventory systems. These characteristics make it compatible with current good manufacturing practice (cGMP) requirements for pharmaceutical intermediates.

Emerging applications in bioconjugation chemistry have expanded the utility of this compound. The amino group readily participates in carbodiimide-mediated couplings with carboxylic acids, enabling its use in proteomics research and antibody-drug conjugate development. This aligns with the biotechnology sector's focus on targeted therapies and precision medicine approaches, where search terms like "benzoate derivatives in bioconjugation" show increasing popularity.

From an industrial production standpoint, optimized synthetic routes to 109098-70-6 emphasize catalyst efficiency and waste minimization. Modern protocols often employ continuous flow chemistry techniques to improve yield and safety, addressing the chemical industry's shift toward process intensification. These advancements respond to frequent searches for "green synthesis of bromoaromatics" and "scalable benzoate production" in academic and industrial research communities.

The compound's regulatory status remains favorable for research use, with proper handling precautions for its amino and bromo functionalities. Safety data sheets recommend standard personal protective equipment including gloves and safety goggles, reflecting standard practices for laboratory chemicals. This positions ethyl 4-amino-2-bromobenzoate as accessible to researchers while maintaining appropriate safety standards.

Future research directions likely to involve CAS 109098-70-6 include metal-organic frameworks (MOFs) construction and covalent organic polymers development, where its bifunctional nature offers unique advantages. The compound's potential in asymmetric synthesis via chiral auxiliary attachment also presents unexplored opportunities, particularly for pharmaceutical building blocks requiring enantiomeric purity.

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