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Product Line: Pharmaceutical Chemicals

4-Amino-3-chlorophenol hydrochloride

CAS 52671-64-4

Molecular structure of 4-Amino-3-chlorophenol hydrochloride

CAS · 52671-64-4

01

Product Overview

4-Amino-3-chlorophenol hydrochloride is a high-purity pharmaceutical-intermediates supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.

02

Product Specifications

Appearance Off-white to brown powder
Purity 99% min
Identification Retention time of sample should match that of the standard
Water content 1% max
Residue on ignition 0.3% max
Total impurity 1% max
Impurity about 1.7 0.4% max
Other single impurity 0.2% max
03

Applications

4-Amino-3-chlorophenol hydrochloride (CAS 52671-64-4) is an aromatic amine used primarily as an intermediate in pharmaceuticals, dyes, and cosmetic formulations. In medicinal chemistry, it serves as a building block for the synthesis of active pharmaceutical ingredients, including analgesics, antiseptics, and other bioactive compounds where the amino and hydroxyl functionalities contribute to biological activity. In the dye and pigment industry, it is employed in producing colorants that require substituted phenolic structures, providing stability and desired chromophoric properties. Additionally, it is used in cosmetic chemistry, particularly in hair dyes and topical formulations, where the compound acts as a reactive intermediate for oxidative coloring agents.

04

Benefits

The benefits of 4-amino-3-chlorophenol hydrochloride arise from its multifunctional reactivity and structural features. The amino group allows for acylation, alkylation, and condensation reactions, while the hydroxyl group enables etherification, esterification, or coupling reactions. The chlorine substituent offers additional chemical versatility for selective substitution or cross-coupling reactions. The hydrochloride salt form improves solubility, stability, and ease of handling compared to the free base. Together, these features allow efficient synthesis of complex molecules with bioactivity, colorant properties, or functional chemical utility, making it a valuable intermediate across multiple industries.

05

Conclusion

In summary, 4-amino-3-chlorophenol hydrochloride is a versatile intermediate applied in pharmaceuticals, dyes, and cosmetic chemistry. Its applications include drug synthesis, colorant production, and hair dye intermediates, while its benefits lie in multifunctional reactivity, enhanced stability, and ease of handling in hydrochloride form. With these properties, it remains an important tool for chemical synthesis and industrial formulation development.

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