Compound Q&A
What are the physical and chemical properties of 4-Aminobenzenesulfonic acid (CAS: 121-57-3)?
Answer
4-Aminobenzenesulfonic acid is a colorless or white crystalline solid with a molecular weight of approximately 189.16 g/mol. It has a solubility of about 7.2 g/100 mL in water at 20°C. The compound is moderately reactive, showing basic properties due to the amino group and acidic properties due to the sulfonic acid group. It is soluble in most organic solvents like methanol, ethanol, and dimethylformamide.
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
