| Molecular Formula | C10H9NO9S3 |
| Molar Mass | 383.37 |
| Density | 1.974 |
| pKa | -1.62±0.40(Predicted) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | for the production of H acids and chromotropic acids. |
| production method | with naphthalene as raw material, after sulfonation, nitration, neutralization, it is obtained by reduction (its ammonium salt is commonly used in the production of dyes). |