Sulfanilic acid
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| Sulfanilic acid | |
|---|---|
| Image:Sulfanilic acid.png | |
| IUPAC name | p-aminobenzenesulfonic acid |
| Other names | Sulphanilic acid |
| Identifiers | |
| CAS number | |
| PubChem | |
| SMILES | C1=CC(=CC=C1N)S(=O)(=O)O |
| InChI | InChI=InChI=1/C6H7NO3S/c7-5- 1-3-6(4-2-5)11(8,9)10/h1-4H, 7H2,(H,8,9,10)/f/h8H |
| Properties | |
| Molecular formula | C6H7NO3S |
| Molar mass | 173.19 |
| Melting point |
288 °C, 561 K, 550 °F |
| Solubility in water | >20 g/l |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references | |
Sulfanilic acid (4-aminobenzene sulfonic acid ) is a colourless crystalline solid produced from sulfonation of aniline.[1]
It readily forms diazo compounds and is used to make dyes and sulpha drugs. [1]
It is a zwitterion with an unusual high melting point.
References
de:Sulfanilsäure it:Acido solfanilico
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