Ioxynil sodium |
![]() Last updated: 15/02/2021 |
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(Also known as: ioxynil-Na) |
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A herbicide used for post-emergence control of various broad-leaved weeds. | |
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Annual broad-leaved weeds | |
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Cereals; Onions; Leeks; Garlic; Shallots; Flax; Sugarcane; Forage grasses; Lawns & turf | |
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Current | |
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UK regulatory status |
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Not approved | ||
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Not applicable | ||
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No UK approval for use |
EC Regulation 1107/2009 (repealing 91/414) |
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Not applicable | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Also used in |
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Chemical structure |
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C₇H₂I₂NaNO | |
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C1=C(C=C(C(=C1I)[O-])I)C#N.[Na+] | |
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No data | |
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QGKPUZOFTJQTHL-UHFFFAOYSA-M | |
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InChI=1S/C7H3I2NO.Na/c8-5-1-4(3-10)2-6(9)7(5)11;/h1-2,11H;/q;+1/p-1 | |
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General status |
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Herbicide | |
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Nitrile | |
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Synthetic | |
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Selective, systemic with contact action, acts by inhibiting photosynthesis at Photosystem II | |
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2961-62-8 | |
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220-995-7 | |
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353300 | |
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23666695 | |
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392.9 | |
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sodium 4-cyano-2,6-diiodophenolate | |
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sodium 4-cyano-2,6-diiodophenolate | |
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4-hydroxy-3,5-diiodobenzonitrile sodium salt | |
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C3 | |
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6 | |
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Not applicable | |
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Not applicable | |
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Formulations |
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140000 | V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM ) 3 = Unverified data of known source |
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360 | V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM ) 3 = Unverified data of known source |
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5.13 X 1000 | Calculated | - | |||||||
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0.71 | V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM ) 3 = Unverified data of known source |
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Degradation |
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Soil adsorption and mobility |
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Fate indices |
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Key metabolites |
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Soil | - | Major fraction, Relevant | |||||
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Soil | - | Major fraction, Relevant | |||||
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Soil | - | Major fraction, Relevant |
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Low risk | Q3 Q = Miscellaneous internet resources Based on LogP < 33 = Unverified data of known source |
Low risk | |||||||
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112 | V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM ) Rat3 = Unverified data of known source |
Moderate | ||||||||
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120 | V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM ) Gallus domesticus3 = Unverified data of known source |
Moderate | ||||||||
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3.3 | F4 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) Rasbora heteromorpha 48 hour4 = Verified data |
Moderate | ||||||||
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> 10.0 | 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 ) 3 = Unverified data of known source |
Moderate | |||||||
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General |
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High (class III) | - | - | ||||||||
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112 | V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM ) Rat3 = Unverified data of known source |
Moderate | ||||||||
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210 | V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM ) Rat3 = Unverified data of known source |
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0.005 | 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 ) as ioxynil5 = Verified data used for regulatory purposes |
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0.04 | 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 ) as ioxynil5 = Verified data used for regulatory purposes |
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0.01 | 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 ) as ioxynil5 = Verified data used for regulatory purposes |
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Health issues |
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Highly toxic by ingestion and skin contact |
Handling issues |
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Emits toxic fumes when heated to decomposition IMDG Transport Code is usually 3 |
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Health: H301, H312, H319, H331, H361d, H373 Environment: H400, H410 |
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Reproduction risk category 3: R63 T - Toxic: R23/25 Xn - Harmful: R21, R48/22 Xi - Irritant: R36 N - Dangerous for the environment: R50, R53 |
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S1/2, S36/37, S45, S60, S61, S63 | |||
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II (Moderately hazardous) | |||
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2588 for active, products usually 1993 | |||
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Packaging Group III (minor danger) |
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ioxynil sodium | ||
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Record last updated: | 15/02/2021 |
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 |