Orange B
From Infogalactic: the planetary knowledge core
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Names | |
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IUPAC name
Disodium 4-[N'-[3-ethoxycarbonyl-5-oxo-1-(4-sulfonatophenyl)-4-pyrazolylidene]hydrazino]-1-naphthalenesulfonate
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Other names
C.I. Acid Orange 137
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Identifiers | |
53060-70-1 ![]() |
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ChemSpider | 16735944 ![]() |
EC Number | 239-201-5 |
Jmol 3D model | Interactive image |
PubChem | 5362511 |
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Properties | |
C22H16N4Na2O9S2 | |
Molar mass | 590.49 g/mol |
Vapor pressure | {{{value}}} |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references | |
Orange B is a food dye from the azo dye group. It is approved by the United States Food and Drug Administration (FDA) for use only in hot dog and sausage casings or surfaces, only up to 150 parts per million of the finished food weight.[1] It is typically prepared as a disodium salt.[1]
Orange B was first listed as an approved food dye by the FDA in 1966. In 1978, the FDA proposed removing it from the list due to concerns about the presence of carcinogenic contaminants (specifically 2-Naphthylamine). The only supplier in the United States, the William J. Stange Company, subsequently stopped manufacturing it and it was never removed from the list.[2]
References
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Categories:
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- Chemical articles using a fixed chemical formula
- Azo dyes
- Food colorings
- Benzenesulfonates
- Naphthalenesulfonates
- Ethyl esters
- Pyrazolones
- Heterocyclic compound stubs