Citrus Red 2: Difference between revisions
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'''Citrus Red 2''', '''Citrus Red No. 2''', '''C.I. Solvent Red 80''', or '''C.I. 12156''' is an artificial [[dye]]. As a [[food dye]], it is permitted by [[Food and Drug Administration]] (FDA) since 1956 only for use in the United States on skin on some [[orange (fruit)|oranges]].<ref>Anonymous. 1988. Florida Citrus Fruit Laws. Florida Statutes. 601.</ref><ref>Code of Federal Regualtions Title 21 Part 74.302 (21 CFR 74.302)</ref><ref>{{cite journal | author = Hall, David J | year = 1989 | title = Peel Disorders of Florida Citrus as Related to Grwing Area and Color-add formulations | journal = Proc. Fla. State Hort. Soc. | volume = 102 | pages = 243-246}}</ref><ref>Hall, David J. and David Sorenson. 2006. Washing, Waxing, and Color-Adding. (Chapter 15 In: ''Fresh Citrus Fruits'', Second Edition. Wilfred F. Wardowski, William M. Miller, David J. Hall and William Grierson, Eds.) Florida Science Source. Longboat Key, Florida.</ref> While the dye is a [[carcinogen]], it does not penetrate the orange peel into the pulp.{{Fact|date=February 2007}} It is an orange to yellow solid or a dark red powder with melting point |
'''Citrus Red 2''', '''Citrus Red No. 2''', '''C.I. Solvent Red 80''', or '''C.I. 12156''' is an artificial [[dye]]. As a [[food dye]], it is permitted by [[Food and Drug Administration]] (FDA) since 1956 only for use in the United States on skin on some [[orange (fruit)|oranges]].<ref>Anonymous. 1988. Florida Citrus Fruit Laws. Florida Statutes. 601.</ref><ref>Code of Federal Regualtions Title 21 Part 74.302 (21 CFR 74.302)</ref><ref>{{cite journal | author = Hall, David J | year = 1989 | title = Peel Disorders of Florida Citrus as Related to Grwing Area and Color-add formulations | journal = Proc. Fla. State Hort. Soc. | volume = 102 | pages = 243-246}}</ref><ref>Hall, David J. and David Sorenson. 2006. Washing, Waxing, and Color-Adding. (Chapter 15 In: ''Fresh Citrus Fruits'', Second Edition. Wilfred F. Wardowski, William M. Miller, David J. Hall and William Grierson, Eds.) Florida Science Source. Longboat Key, Florida.</ref> While the dye is a [[carcinogen]], it does not penetrate the orange peel into the pulp.{{Fact|date=February 2007}} It is an orange to yellow solid or a dark red powder with a melting point of 156 °C. |
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Citrus Red 2 is not water-soluble, but readily soluble in many organic solvents. |
Citrus Red 2 is not water-soluble, but readily soluble in many organic solvents. |
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Revision as of 12:51, 10 August 2009
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| Names | |
|---|---|
| IUPAC name
1-(2,5-Dimethoxy-phenylazo)-naphthalen-2-ol
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| Other names
Citrus Red No. 2, C.I. Solvent Red 80, C.I. 12156, E121
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| Identifiers | |
3D model (JSmol)
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| ECHA InfoCard | 100.026.162 |
| E number | E121 (colours) |
PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| C18H16N2O3 | |
| Molar mass | 308.337 g·mol−1 |
| Appearance | Orange to yellow solid or a dark red powder |
| Melting point | 156 °C (313 °F; 429 K) |
| Insoluble | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Citrus Red 2, Citrus Red No. 2, C.I. Solvent Red 80, or C.I. 12156 is an artificial dye. As a food dye, it is permitted by Food and Drug Administration (FDA) since 1956 only for use in the United States on skin on some oranges.[1][2][3][4] While the dye is a carcinogen, it does not penetrate the orange peel into the pulp.[citation needed] It is an orange to yellow solid or a dark red powder with a melting point of 156 °C.
Citrus Red 2 is not water-soluble, but readily soluble in many organic solvents.
References
- ^ Anonymous. 1988. Florida Citrus Fruit Laws. Florida Statutes. 601.
- ^ Code of Federal Regualtions Title 21 Part 74.302 (21 CFR 74.302)
- ^ Hall, David J (1989). "Peel Disorders of Florida Citrus as Related to Grwing Area and Color-add formulations". Proc. Fla. State Hort. Soc. 102: 243–246.
- ^ Hall, David J. and David Sorenson. 2006. Washing, Waxing, and Color-Adding. (Chapter 15 In: Fresh Citrus Fruits, Second Edition. Wilfred F. Wardowski, William M. Miller, David J. Hall and William Grierson, Eds.) Florida Science Source. Longboat Key, Florida.