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| Names | |
|---|---|
| Preferred IUPAC name 2,2′-(Ethene-1,2-diyl)bis(5-isothiocyanatobenzene-1-sulfonic acid) | |
| Other names 5-Isothiocyanato-2-[2-(4-isothiocyanato-2-sulfophenyl)ethenyl]benzenesulfonic acid | |
| Identifiers | |
| |
3D model (JSmol) | |
| Abbreviations | DIDS |
| 6543839 | |
| ChEBI | |
| ChemSpider | |
| ECHA InfoCard | 100.152.489 |
| KEGG | |
| MeSH | 4,4'-Diisothiocyanostilbene-2,2'-disulfonic+acid |
| UNII |
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| Properties | |
| C16H10N2O6S4 | |
| Molar mass | 454.50 g·mol−1 |
| Melting point | 400 °C (752 °F; 673 K) |
| logP | 4.72 |
| Acidity (pKa) | −3.21, −1.428, −0.37, 0.23 |
| Basicity (pKb) | 13.77, 14.37, 15.425, 17.21 |
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |
4,4′-Diisothiocyano-2,2′-stilbenedisulfonic acid (DIDS) is ananion exchangeinhibitor,[1] blocking reversibly, and later irreversibly,exchangers such aschloride-bicarbonate exchanger.[2]
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