4,4′-Diamino-2,2′-stilbenedisulfonic acid
Names | |
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IUPAC name
4,4′-Diamino-2,2′-stilbenedisulfonic acid
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Preferred IUPAC name
2,2′-[(E)-Ethene-1,2-diyl]bis(5-aminobenzene-1-sulfonic acid) | |
Other names
amsonic acid
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Identifiers | |
3D model (
JSmol ) |
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ChemSpider | |
ECHA InfoCard
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100.001.206 |
PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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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).
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4,4′-Diamino-2,2′-stilbenedisulfonic acid is the
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]