4,4′-Diamino-2,2′-stilbenedisulfonic acid
 | |
| Names | |
|---|---|
| IUPAC name
4,4′-Diamino-2,2′-stilbenedisulfonic acid | |
| Other names
amsonic acid | |
| Identifiers | |
| 81-11-8 | |
| ECHA InfoCard | 100.001.206 |
| Properties | |
| C14H14N2O6S2 | |
| Molar mass | 370.40 |
| Appearance | white solid |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
4,4′-Diamino-2,2′-stilbenedisulfonic acid is the organic compound with the formula (H2NC6H3SO3H)2C2H2. It is a white, water-soluble solid. Structurally, it is a derivative of trans-stilbene, containing amino and sulfonic acid functional groups on each of the two phenyl rings. The compound is a popular optical brightener for use in laundry detergents. It is produced by reduction of 4,4′-dinitro-2,2′-stilbenedisulfonic acid with iron powder.[1]
References
- ↑ P. F. Vogt, J. J. Gerulis, "Amines, Aromatic" in Ullmann’s Encyclopedia of Industrial Chemistry, 2005, Wiley-VCH, Weinheim. doi:10.1002/14356007.a02_037
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