| Appearance | White powder |
| CAS Number | 121-47-1 |
| ChEBI | 27764 |
| Class | 8 |
| Density | 1.69 g/cm3 |
| EINECS Number | 204-473-6 |
| HS Code | 2921.42 |
| IUPAC Name | 3-Aminobenzenesulfonic Acid |
| InChI | 1S/C6H7NO3S/c7-5-2-1-3-6(4-5)11(8,9)10/h1-4H,7H2,(H,8,9,10) |
| InChIKey | ZAJAQTYSTDTMCU-UHFFFAOYSA-N |
| Melting Point | >300 °C |
| Molar Mass | 173.19 g/mol |
| Molecular Formula | C6H7NO3S |
| NFPA 704 | H-2,F-0,R-0,C-NA |
| PG | 3 |
| RTECS Number | OY2300000 |
| Solubility | Slightly soluble |
| Synonyms | m-Aminobenzenesulfonic Acid;m-Anilinesulfonic Acid;m-Sulfanilic Acid;1-Aminobenzene-3-sulfonic Acid;Aminobenzenesulfonic Acid;Benzenesulfonic acid, 3-amino-;Metanilic Acid |
Metanilic Acid
Metanilic acid is used in the manufacture of azo dyes and in synthesis sulfa drugs.
