4-Aminophenol

4-Aminophenol (CAS 123-30-8) is an aromatic amine compound commercially known under trade names including Azol, Citol, Activol, and Certinal. It carries no assigned E-code and is classified under the amines category with EC number 204-616-2 and molecular formula C6H7NO.

In pharmaceutical manufacturing, 4-Aminophenol serves as a key intermediate in the synthesis of analgesic compounds, including paracetamol, where it undergoes acetylation to form the active ingredient. In photographic and printing applications, it functions as a developing agent by reducing silver halide salts to metallic silver, enabling image formation.

This compound is supplied in crystalline powder form and is subject to REACH registration requirements for European trade. Procurement teams should confirm supplier SDS documentation and purity specifications relevant to their application, particularly for pharmaceutical-grade material where additional quality standards may apply. Standard industrial packaging formats are available upon request.