Compound Q&A
How is 4-Aminobenzenesulfonic acid (CAS: 121-57-3) typically synthesized?
Answer
4-Aminobenzenesulfonic acid can be synthesized by the sulfonation of 4-aminobenzoic acid. This process involves treating 4-aminobenzoic acid with fuming sulfuric acid in the presence of a catalyst like pyridine. The reaction is typically carried out at elevated temperatures to improve yield and selectivity. The overall yield can range from 70% to 80% depending on reaction conditions and purification methods.
About
CAS No
121-57-3
English Name
4-Aminobenzenesulfonic acid
Molecular Formula
C6H7NO3S
Molecular Weight
173.19 g/mol
SMILES
Nc1ccc(cc1)S(=O)(=O)O
InChIKey
HVBSAKJJOYLTQU-UHFFFAOYSA-N
Last Updated: 2025-09-08 00:42
