Ethoxyquin
| Ethoxyquin[1] | |
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6-ethoxy-2,2,4-trimethyl-1,2-dihydroquinoline |
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| Identifiers | |
| CAS number | 91-53-2  |
| PubChem | 3293 |
| ChemSpider | 3177 |
| UNII | 9T1410R4OR |
| ChEMBL | CHEMBL172064 |
| Jmol-3D images | Image 1 |
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| Properties | |
| Molecular formula | C14H19NO |
| Molar mass | 217.31 g mol−1 |
| Melting point |
< 25 °C |
| Boiling point |
123–125 °C at 2 mmHg |
 (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 | |
Ethoxyquin is a quinoline-based antioxidant used as a food preservative (E324) and a pesticide (under commercial names such as "Stop-Scald"). It is commonly used as a preservative in pet foods to prevent the rancidification of fats. Ethoxyquin is also commonly used in spices to prevent color loss due to oxidation of the natural carotenoid pigments.[citation needed]
There has been some speculation that ethoxyquin in pet foods might be responsible for multiple health problems. To date, the U.S. Food and Drug Administration (FDA) has only found a verifiable connection between ethoxyquin and buildup of protoporphyrin IX in the liver, as well as elevations in liver-related enzymes in some animals, but there are no known health consequences from these effects.[2] In 1997, the Center for Veterinary Medicine has asked pet food manufacturers to voluntarily limit ethoxyquin levels to 75 ppm until further evidence is reported.[2] However, most pet foods that contain ethoxyquin have never exceeded this amount.[2]
Ethoxyquin has been shown to be slightly toxic to fish.[3]
[edit] References
- ^ Merck Index, 11th Edition, 3710
- ^ a b c Pet Food Labels, U.S. Food and Drug Administration
- ^ Ethoxyquin at the PAN pesticide database
