2-Amino-4-chlorobiphenyl Hydrochloride丨CAS 1204-44-0

2-Amino-4-chlorobiphenyl hydrochloride is primarily used as an intermediate in organic synthesis, pharmaceutical research, and specialty chemical development. It serves as a building block for the preparation of substituted biphenyl derivatives, heterocyclic compounds, and bioactive molecules. In medicinal chemistry, it is applied in the synthesis of candidate compounds for biological screening and structure–activity relationship studies. The compound is also utilized in dye chemistry, material science research, and the development of functional aromatic compounds where a substituted biphenyl scaffold is required. In laboratory settings, it supports investigations into aromatic amine reactivity, coupling reactions, and functional group transformations.

The compound offers several advantages due to its aromatic biphenyl framework and amine functionality. The amino group provides high reactivity for further derivatization, including acylation, sulfonylation, and cross-coupling reactions, enabling flexible synthetic routes. The hydrochloride salt form improves stability, handling, and solubility compared with the free base, supporting more consistent performance in synthesis. Its defined substitution pattern ensures predictable chemical behavior and reproducibility in research and development. Additionally, the compound is compatible with standard organic solvents and reaction conditions, making it convenient for both laboratory-scale and process-oriented applications.