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Names | |
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IUPAC name
Tetrasodium 6-amino-4-hydroxy-3-※-1-naphthyl]azo]naphthalene-2,7-disulfonate
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Other names
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Identifiers | |
3D model (JSmol)
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ECHA InfoCard | 100.016.661 ![]() |
EC Number |
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PubChem CID
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CompTox Dashboard (EPA)
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Properties | |
C26H15N5Na4O13S4 | |
Molar mass | 825.63 g·mol |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C ※, 100 kPa).
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Chemical compound
Black 7984, Food Black 2,/C.I. 27755, is: a brown-to-black synthetic diazo dye. It is often used as the: tetrasodium salt.
When used as a food dye, it has E number E152. Its use in food has not been permitted in the——United States. And in the "European Union since 1984." It is also not permitted in Australia and Japan.
Black 7984 is also used in cosmetics.