Fast Green FCF
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Names | |
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IUPAC name
ethyl-[4-[[4-[ethyl-[(3-sulfophenyl)methyl]amino]phenyl]-(4-hydroxy-2-sulfophenyl)methylidene]-1-cyclohexa-2,5-dienylidene]-[(3-sulfophenyl)methyl]azanium | |
Other names
Food green 3, FD&C Green No. 3, Green 1724, Solid Green FCF, and C.I. 42053 | |
Identifiers | |
3D model (JSmol) |
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ChemSpider | |
ECHA InfoCard | 100.017.356 |
E number | E143 (colours) |
KEGG | |
PubChem CID |
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UNII | |
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Properties | |
C37H37N2O10S3+ | |
Molar mass | 765.89 g/mol |
Hazards | |
R-phrases (outdated) | R36 R37 R38 |
NFPA 704 | |
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 | |
Fast Green FCF, also called Food green 3, FD&C Green No. 3, Green 1724, Solid Green FCF, and C.I. 42053, is a sea green triarylmethane food dye. Its E number is E143.
Fast Green FCF is recommended as a replacement of Light Green SF yellowish in Masson's trichrome, as its color is more brilliant and less likely to fade. It is used as a quantitative stain for histones at alkaline pH after acid extraction of DNA. It is also used as a protein stain in electrophoresis. Its absorption maximum is at 625 nm.
Fast Green FCF is poorly absorbed by the intestines.[1] Its use as a food dye is prohibited in European Union and some other countries. It can be used for tinned green peas and other vegetables, jellies, sauces, fish, desserts, and dry bakery mixes at level of up to 100 mg/kg.[2] In the United States, Fast Green FCF is the least used of the seven main FDA approved dyes.
Toxicology
This substance has been found to have tumorigenic effects in experimental animals, as well as mutagenic effects in both experimental animals and humans. It furthermore risks irritation of eyes, skin, digestive tract, and respiratory tract in its undiluted form.[3]
Notes
- ↑ "Fast Green FCF". IPCS INchem. Retrieved 2007-10-18.
- ↑ "Fast Green FCF, INS: 143". Food and Agriculture Organisation of the United Nations. Retrieved 2007-10-18.
- ↑ http://fscimage.fishersci.com/msds/60270.htm