| CAS number | 98-67-9 |
| Molecular formula | C6H6O4S |
| Product name | 98-67-9, 4-Hydroxybenzenesulfonic acid |
| Molecular Structure | ![]() |
Melting point 52 °C
Boiling point 275.14°C (rough estimate)
density 1.337 g/mL at 25 °C
vapor pressure 69.8Pa at 20℃
refractive index n20/D 1.489
solubility Water (Slightly)