4,8a-dihydroxy-avermectin B1a (Ref: NOA 457464) |
Last updated: 11/01/2023 |
(Not known by any other names) |
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Chemical transformation product | |
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Not applicable | |
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Chemical structure |
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C₄₈H₇₂O₁₆ | |
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CCC(C)C1C(C=CC2(O1)CC3CC(O2)CC=C(C(C(C=CC=C4C(OC5C4(C(=CC(C5O)(C)O)C(=O)O3)O)O)C)OC6CC(C(C(O6)C)OC7CC(C(C(O7)C)O)OC)OC)C)C | |
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CC[C@H](C)[C@@H]1[C@H](C=C[C@@]2(O1)C[C@@H]3C[C@H](O2)C/C=C(/[C@H]([C@H](/C=C/C=C/4\C(OC5[C@@]4(C(=CC(C5O)(C)O)C(=O)O3)O)O)C)OC6C[C@@H]([C@H]([C@@H](O6)C)OC7C[C@@H]([C@H]([C@@H](O7)C)O)OC)OC)\C)C | |
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OMBXABPRGJUCIC-MYUBZZDVSA-N | |
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InChI=1S/C48H72O16/c1-11-24(2)40-27(5)17-18-47(64-40)22-31-19-30(63-47)16-15-26(4)39(60-37-21-35(56-10)41(29(7)58-37)61-36-20-34(55-9)38(49)28(6)57-36)25(3)13-12-14-32-44(51)62-43-42(50)46(8,53)23-33(45(52)59-31)48(32,43)54/h12-15,17-18,23-25,27-31,34-44,49-51,53-54H,11,16,19-22H2,1-10H3/b13-12+,26-15+,32-14+/t24-,25-,27-,28-,29-,30+,31-,34-,35-,36?,37?,38-,39-,40+,41-,42?,43?,44?,46?,47+,48+/m0/s1 | |
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Yes |
General status |
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Soil | |
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Unclassified substance | |
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Synthetic | |
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139596429 | |
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905.1 | |
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2R,3S,4'S,6S,8'R,10'E,12'S,13'S,14'E,16'Z,24'R)-2-[(2S)-butan-2-yl]-18',21',22',24'-tetrahydroxy-12'-[(4S,5S,6S)-5-[(4S,5S,6S)-5-hydroxy-4-methoxy-6-methyloxan-2-yl]oxy-4-methoxy-6-methyloxan-2-yl]oxy-3,11',13',22'-tetramethylspiro[2,3-dihydropyran-6,6'-3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-1(23),10,14,16-tetraene]-2'-one | |
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2R,3S,4'S,6S,8'R,10'E,12'S,13'S,14'E,16'Z,24'R)-2-[(2S)-butan-2-yl]-18',21',22',24'-tetrahydroxy-12'-[(4S,5S,6S)-5-[(4S,5S,6S)-5-hydroxy-4-methoxy-6-methyloxan-2-yl]oxy-4-methoxy-6-methyloxan-2-yl]oxy-3,11',13',22'-tetramethylspiro[2,3-dihydropyran-6,6'-3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-1(23),10,14,16-tetraene]-2'-one | |
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4,8a-dihydroxy-avermectin B1a | |
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Can be a metabolite of: |
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abamectin | Groundwater | - | - | |||||
abamectin | Soil | 0.099 | Minor fraction |
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Degradation |
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51.9 | 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 |
Moderately persistent | |||||||
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51.9 | 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 |
Moderately persistent | ||||||||
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188 | 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 |
Persistent | ||||||||
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EU 2019 dossier lab studies DT₅₀ (normalised) range 35.9-74.0 days, DT₉₀ (measured) range 148-246 days, Soils=4 | ||||||||||
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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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35.4 | 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 |
Slightly mobile | |||||||
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1732 | ||||||||||
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0.912 | ||||||||||
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EU dossier Kf range 16.9-61.3 mL g⁻¹, Kfoc range 1082-2423 mL g⁻¹, 1/n range 0.890-0.944, Soils=3 | ||||||||||
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Fate indices |
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1.31 | Calculated | Low leachability | ||||||||||||||||||||||||||
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69.1 | 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 ) Whole fish parent3 = Unverified data of known source |
Low potential | |||||||||||||||||||||||||
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Known metabolites |
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Terrestrial ecotoxicology |
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Aquatic ecotoxicology |
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0.854 | 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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34.1 | 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 ) Desmodesmus subspicatus5 = Verified data used for regulatory purposes |
Low | ||||||||
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General |
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Health issues |
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Handling issues |
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Not listed (Not listed) | |||
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4,8a-dihydroxy-avermectin B1a | ||
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Record last updated: | 11/01/2023 |
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 |