This product is widely used as feed and food antioxidant. Spraying this product on dehydrated feed or pre harvest feed crops can prevent fat and protein feed from spoiling during storage. It can be used for the preservation of drugs such as vitamin A and vitamin E. Prevent the formation of organic peroxides in canned meat food and animal feed. Improve the intake of vitamin E in chicks and maintain it at a normal level. Improve carcass quality and increase animal weight. The product can also be used for the preservation of apples, pears and other fruits; It is reported that ethoxyquine is an effective protective agent to prevent rubber grass poisoning in sheep. This product is also a polluting rubber antioxidant (antioxidant aw), which is mainly used for natural rubber and synthetic rubber, especially styrene butadiene rubber. Superior oxygen resistance and ozone resistance, weather resistance, heat resistance K and flexion cracking resistance. The general dosage is 1-2 parts, sometimes it can be increased to 3-4 parts. It has synergistic effect with 4010NA and paraffin, which can further improve the protection efficiency. It is not easy to spray cream, but it is highly polluting, and is not suitable for light and bright products. The product is used for apples and pears and can prevent and treat Apple tiger skin disease. The oral LD50 of rats was 3150 mg / kg and that of mice was 3000 mg / kg. When used as feed additive, the product has low toxicity and safe use. The residues in poultry fat, liver and muscle are 0.238, 0.048 and 0.005ml/kg respectively. The residue in eggs is 0.031mg/kg, mainly distributed in egg yolk, and the maximum tolerance of human body is 60 μ g/kg。