Orange B
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Orange B
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| Orange B | |
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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 | |
| CAS number | 15139-76-1  |
| PubChem | 5362511 |
| ChemSpider | 16735944 |
| EC number | 239-201-5 |
| Jmol-3D images | Image 1 |
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| Properties | |
| Molecular formula | C22H16N4Na2O9S2 |
| Molar mass | 590.49 g/mol |
 (verify) (what is:  / ?)Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 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 ppm of the finished food weight.[citation needed] It usually comes as disodium salt.
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