Ethoxyquin |
Last updated: 29/08/2024 |
(Also known as: ethoxyquine; polyethoxyquinoline; PEQ) |
SUMMARY |
Ethoxyquin is a fungicide used for post-harvest control of scald and other diseases in top fruit. It is moderately soluble in water and miscible with many organic solvents. Ethoxyquin is not volatile. No information is available regarding persistence in soil or water. It is moderately toxic to mammals, fish and aquatic invertebrates. The substance is also moderately toxic to humans and is a recognised irritant. No chronic health impacts have been identified. |
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Ethoxyquin is a synthetic chemical fungicide and preservative used to retain feed quality | |
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Current | |
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circa 1990, introduced | |
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Used in animal feeds in particular it may be used to retard oxidation and rancidity of feedstuffs, fats, vitamins and carotenoids. | |
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Poultry; Pigs |
Approval status |
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Not approved | |
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Not approved |
Chemical structure |
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None | |
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C₁₄H₁₉NO | |
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CCOC1=CC2=C(C=C1)NC(C=C2C)(C)C | |
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No data | |
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DECIPOUIJURFOJ-UHFFFAOYSA-N | |
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InChI=1S/C14H19NO/c1-5-16-11-6-7-13-12(8-11)10(2)9-14(3,4)15-13/h6-9,15H,5H2,1-4H3 | |
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Yes |
General status |
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Preservative, Feed additive | |
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Antioxidant | |
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Quinoline fungicide | |
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950 g kg⁻¹ | |
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EU dossier - p-phenetidine 0.75 g kg⁻¹ | |
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Synthetic | |
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Anti-oxidant effecting plant growth | |
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- | |
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91-53-2 | |
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202-075-7 | |
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517 | |
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055501 | |
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3293 | |
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613-014-00-2 | |
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None allocated | |
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No | |
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- | |
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217.34 | |
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6-ethoxy-2,2,4-trimethyl-1,2-dihydroquinoline | |
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1,2-dihydro-2,2,4-trimethylquinolin-6-yl ethyl ether | |
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6-ethoxy-1,2-dihydro-2,2,4-trimethylquinoline | |
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Chemical subject to PIC regulations; Should not be used on Red Delicious, Golden Delicious or late picked Winesap apples as may reduce quality | |
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Yellow to brown coloured viscous liquid |
Formulations |
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60.0 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) at 25 °C5 = Verified data used for regulatory purposes |
Moderate | ||||||||
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Miscible | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) n-Heptane5 = Verified data used for regulatory purposes |
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Miscible | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Methanol5 = Verified data used for regulatory purposes |
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Miscible | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Acetone5 = Verified data used for regulatory purposes |
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Miscible | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Ethyl acetate5 = Verified data used for regulatory purposes |
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< -20 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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150 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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150 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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150 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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2.45 X 1003 | Calculated | - | |||||||
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3.39 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
High | ||||||||
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Soluble | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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Regulatory data - observed in metabolism and farm animal feeding studies | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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1.03 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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4.56 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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@ 22degC | |||||||||||
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0.346 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) at 25 °C5 = Verified data used for regulatory purposes |
Low volatility. If applied directly to plants, drift is a concern & mitigation is advisable | ||||||||
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4.43 X 10-02 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) at 25 °C5 = Verified data used for regulatory purposes |
Non-volatile | ||||||||
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Neutral solution: 350nm = 2450, 228nm = 24300 Acidic solution: 299nm = 1680, 259nm = 6450, 224nm = 24600 Basic solution: 350nm = 2460, 228nm = 250000 |
A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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58.5 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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Degradation |
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As this parameter is not normally measured directly, a surrogate measure is used: ‘Photochemical oxidative DT₅₀’. Where data is available, this can be found in the Fate Indices section below. | ||||||||||
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Soil adsorption and mobility |
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- | Q2 Q = Miscellaneous data from online sources 2 = Unverified data of unknown source |
Slightly mobile | |||||||
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3208 | ||||||||||
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Estimated | ||||||||||
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Fate indices |
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Low risk | Q2 Q = Miscellaneous data from online sources 2 = Unverified data of unknown source |
Low risk | |||||||||||||||||||||||||
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Not available | - |
Known soil and groundwater metabolites |
None
Other known metabolites |
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methylethoxyquin | MEQ | Plant | - | ||||
dihydroethoxyquin | DHEQ | Plant | - | ||||
dihydromethylethoxyquin | DHMEQ | Plant | - |
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Terrestrial ecotoxicology |
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1726 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Rat5 = Verified data used for regulatory purposes |
Moderate | ||||||||
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2417 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Colinus virginianus5 = Verified data used for regulatory purposes |
Low | ||||||||
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> 1505 mg kg bw⁻¹ day⁻¹ | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Colinus virginianus5 = Verified data used for regulatory purposes |
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Aquatic ecotoxicology |
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18 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Oncorhynchus mykiss5 = Verified data used for regulatory purposes |
Moderate | ||||||||
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2 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Daphnia magna5 = Verified data used for regulatory purposes |
Moderate | ||||||||
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6.1 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Pseudokirchneriella subcapitata5 = Verified data used for regulatory purposes |
Low | ||||||||
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General |
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High (class III) | - | - | ||||||||
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1726 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Rat5 = Verified data used for regulatory purposes |
Moderate | ||||||||
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2000 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Rat5 = Verified data used for regulatory purposes |
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> 1.97 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Rat 4 hr (whole body)5 = Verified data used for regulatory purposes |
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Intraperitoneal LD₅₀ = 200 mg kg⁻¹ | V3 V = ChemID Online Databases; Chemspider; PubChem. (ChemID ) Mouse3 = Unverified data of known source |
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Intravenous LD₅₀ = 178 mg kg⁻¹ | V3 V = ChemID Online Databases; Chemspider; PubChem. (ChemID ) Mouse3 = Unverified data of known source |
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None allocated | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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None allocated | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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None allocated | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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100 | A3 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) default3 = Unverified data of known source |
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Rapidly excreted unchanged in urine and faeces of mammals | F4 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents / FAO data, IPCS INCHEM data (US EPA Databases Related to Pesticide Risk Assessment ) 4 = Verified data |
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Health issues |
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May cause dermatitis, probable sensitiser Possible liver and kidney toxicant |
Handling issues |
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Not explosive or oxidising | |||
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Health: H302 | |||
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Not listed (Not listed) | |||
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ethoxyquin | ||
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ethoxyquine | ||
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Ethoxyquin | ||
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ethoxyquin | ||
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etossichina | ||
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etoxiquina | ||
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etoksychina | ||
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etoxiquin | ||
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ethoxychin | ||
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Record last updated: | 29/08/2024 |
Contact: | aeru@herts.ac.uk |
Please cite as: | Lewis, K.A., Tzilivakis, J., Warner, D. and Green, A. (2016) An international database for pesticide risk assessments and management. Human and Ecological Risk Assessment: An International Journal, 22(4), 1050-1064. DOI: 10.1080/10807039.2015.1133242 |