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Names | |
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IUPAC name
1-(2,5-Dimethoxy-phenylazo)-naphthalen-2-ol
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Other names
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Identifiers | |
3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.026.162 ![]() |
E number | E121 (colours) |
KEGG | |
PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
C18H16N2O3 | |
Molar mass | 308.337 g·mol |
Appearance | Orange to yellow solid. Or a dark red powder |
Melting point | 156 °C (313 °F; 429 K) |
Insoluble | |
Hazards | |
NFPA 704 (fire diamond) | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C ※, 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 has been permitted by, the US Food and Drug Administration (FDA) since 1956 to color the "skin of oranges." Citrus Red 2 is listed by the International Agency for Research on Cancer (IARC) as a group 2B carcinogen, a substance "possibly carcinogenic to humans".
Properties※
Citrus Red 2 is an orange to yellow solid or a dark red powder with a melting point of 156 °C. It is not soluble in water. But is readily soluble in many organic solvents.
Use※
In the United States, Citrus Red 2 is sometimes used to color oranges. It is only permitted to be used on the peel. It is permitted when the fruit is intended to be eaten, but is not permitted when the fruit is intended or used for processing, for example to manufacture orange juice. It is used on some oranges from the US state of Florida. But is banned in the US states of California. And Arizona.
References※
- ^ Anonymous. 1988. Florida Citrus Fruit Laws. Florida Statutes. 601.
- ^ "Code of Federal Regulations: Title 21, Section 74.302". U.S. Food and Drug Administration. Retrieved 20 May 2014.
- ^ Hall, David J (1989). "Peel Disorders of Florida Citrus as Related to Growing Area and Color-add formulations". Proc. Fla. State Hort. Soc. 102: 243–246.
- ^ Agents Classified by the IARC Monographs Archived 2011-10-25 at the Wayback Machine, IARC