CompoundsOrganic CompoundsEthoxyquin CAS 91-53-2

SKU: WGP-91-53-2



MF: C14H19NO

Ethoxyquin is a quinoline that is 1,2-dihydroquinoline bearing three methyl substituents at position 2, 2 and 4 as well as an ethoxy substituent at position 6.


Ethoxyquin CAS 91-53-2 Product Information

Product Name: Ethoxyquin
Synonyms: 6-Ethoxy-2,2,4-trimethyl-1,2-dihydroquinoline;Quinoline, 6-ethoxy-1,2-dihydro-2,2,4-trimethyl-;EINECS 202-075-7;6-Ethoxy-1,2-dihydro-2,2,4-trimethylquinoline;emq;quinoled;1,2-dihydro-2,2,4-trimethylquinolin-6-yl ethyl ether;UNII-9T1410R4OR;2,2,4-trimethyl-6-ethoxy-1,2-dihydroquinoline;nocracaw;amea100;Santoquin;usafb-24;antageaw;niflex;ETMDQ;1,2-dihydro-6-ethoxy-2,2,4-trimethylQUINOLINE;Santoflex;niflexd;MFCD00023883;Ethoxyquin
CAS NO: 91-53-2
Molecular Weight: 217.31
Molecular Formula: C14H19NO
Boiling Point: 333.1±42.0 °C at 760 mmHg
Melting point: <0ºC
Density: 1.0±0.1 g/cm3
Appearance: Transparent yellow or brown viscous liquid
Purity: >98%
Solubility: Soluble in benzene, gasoline, ether, alcohol, carbon tetrachloride, acetone, dichloroethane, insoluble in water. Nontoxic.
Storage: It should be sealed in a cool, ventilated place. Fire, moisture and sun protection.

What is ethoxyquin?

Ethoxyquin is a synthetic antioxidant primarily used as a food preservative. Its chemical name is 6-ethoxy-1,2-dihydro-2,2,4-trimethylquinoline. Ethoxyquin was initially developed as a stabilizer for rubber, but its application expanded to the food industry due to its antioxidative properties.

In the food industry, ethoxyquin is commonly used as a preservative in animal feeds, pet foods, and certain food products. It helps prevent the oxidation of fats and oils, extending the shelf life of these products by inhibiting the development of rancidity and off-flavors caused by lipid oxidation.

Ethoxyquin has also found application in the agriculture sector as a pesticide and plant growth regulator. However, its use as a pesticide is regulated in many countries, and maximum residue limits may be in place.

ethoxyquin in spices

Ethoxyquin is sometimes used as a preservative in spices to prevent oxidation and extend their shelf life. It helps maintain the quality and flavor of spices by inhibiting the degradation of essential oils and other volatile compounds that contribute to their aroma and taste.

ethoxyquin in dog food

Ethoxyquin remains stable at the high temperatures required to process dog foods during extrusion. It is important in protecting fats and oils from degrading, losing available calories, and becoming rancid.

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