Ametryn (Ref: G 34162 ) |
![]() Last updated: 24/12/2020 |
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(Also known as: ametryne) |
SUMMARY |
Ametyn is a triazine herbicide that no longer has EU regulatory approval for use. It is moderately soluble in water but much more so in organic solvents. It is quite volatile and not expected to leach to groundwater. It is moderately persistant in soils and can persist for a long time in water under certain conditions. It is moderately toxic to mammals and a recognised irritant. Ametryn is moderately toxic to most aquatic organisms, honey bees and earthworms but less so to birds. |
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A triazine herbicide used to control most annual and broad-leaved weeds | |
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Burmuda grass, wiregrass, goosegrass, crabgrass and other grass weeds; Broad-leaved weeds including dallisgrass, thistle, purslane, pigweed, cocklebur, lambsquarters, morning glory and foxtail | |
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Fruit including citrus, bananas; Corn; Potatoes; Sugarbeet | |
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Current | |
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1964, first registered USA |
UK regulatory status |
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Not approved | ||
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Expired | ||
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No UK approval for use |
EC Regulation 1107/2009 (repealing 91/414) |
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Not approved | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Expired | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Yes | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Also used in |
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Australia |
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Chemical structure |
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C₉H₁₇N₅S | |
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CCNC1=NC(=NC(=N1)SC)NC(C)C | |
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No data | |
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RQVYBGPQFYCBGX-UHFFFAOYSA-N | |
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InChI=1S/C9H17N5S/c1-5-10-7-12-8(11-6(2)3)14-9(13-7)15-4/h6H,5H2,1-4H3,(H2,10,11,12,13,14) | |
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Yes |
General status |
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Herbicide | |
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Triazine | |
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96% | |
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Synthetic | |
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Selective, systemic absorbed through foliage and roots. Inhibits photosynthesis (photosystem II). | |
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834-12-8 | |
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212-634-7 | |
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133 | |
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080801 | |
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13263 | |
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227.12 | |
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N2-ethyl-6-(methylsulfanyl)-N4-(propan-2-yl)-1,3,5-triazine-2,4-diamine | |
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N2-ethyl-N4-isopropyl-6-methylthio-1,3,5-triazine-2,4-diamine | |
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N-ethyl-N'-(1-methylethyl)-6-(methylthio)-1,3,5-triazine-2,4-diamine | |
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Chemical subject to PIC regulations | |
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C1 | |
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5 | |
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Not applicable | |
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Not applicable | |
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White powder | |
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Formulations |
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Available in a range of formulations including emulsifiable concentrates, flowable concentrates and wettable powders. |
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200 | H4 H = The US ARS pesticide properties database (click here ) 4 = Verified data |
Moderate | ||||||||
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56900 | R3 R = Peer reviewed scientific publications Acetone3 = Unverified data of known source |
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1400 | R3 R = Peer reviewed scientific publications n-Hexane3 = Unverified data of known source |
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4600 | R3 R = Peer reviewed scientific publications Toluene3 = Unverified data of known source |
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86.7 | E3 E = Manufacturers safety data sheets 3 = Unverified data of known source |
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337 | E3 E = Manufacturers safety data sheets 3 = Unverified data of known source |
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Not expected to self ignite; Not highly flammable | V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM ) 3 = Unverified data of known source |
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4.27 X 1002 | Calculated | - | |||||||
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2.63 | H4 H = The US ARS pesticide properties database (click here ) 4 = Verified data |
Low | ||||||||
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1.18 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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10.07 | DW4 DW = Don Wauchope personal database for Pka data: Wauchope, R. D. and Edwards, J. Dissociation constants for pesticide active ingredients: a database and comparison with predicted values. MS in preparation 4 = Verified data |
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Very weak acid | |||||||||||
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0.365 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Low volatility | ||||||||
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4.10 X 10-04 | H4 H = The US ARS pesticide properties database (click here ) 4 = Verified data |
Non-volatile | ||||||||
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Degradation |
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37 | H4 H = The US ARS pesticide properties database (click here ) 4 = Verified data |
Moderately persistent | |||||||
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60 | Q3 Q = Miscellaneous internet resources 3 = Unverified data of known source |
Moderately persistent | ||||||||
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37 | H4 H = The US ARS pesticide properties database (click here ) 4 = Verified data |
Moderately persistent | ||||||||
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Other sources: DT₅₀ 70-120 days (R3) | ||||||||||
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- | W4 W = French database provided by ARVALIS-Institut du Végétal 4 = Verified data |
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Slow degradation in UV light | ||||||||||
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Stable | W4 W = French database provided by ARVALIS-Institut du Végétal 4 = Verified data |
Stable | |||||||
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Stable to hydrolysis except at extreme pH values e.g. pH 0-1 and pH 13-14. | ||||||||||
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Soil adsorption and mobility |
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- | H3 H = The US ARS pesticide properties database (click here ) 3 = Unverified data of known source |
Moderately mobile | |||||||
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316 | ||||||||||
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General literature Koc range 170-390 mL g⁻¹ | ||||||||||
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76.81 | R4 R = Peer reviewed scientific publications 4 = Verified data |
Non-mobile | |||||||
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5115 | ||||||||||
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0.86 | ||||||||||
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Kf range 1.35-194.6 mL g⁻¹, Kfoc range 38.6-14969 mL g⁻¹, 1/n range 0.60-1.22, Soils=3 | ||||||||||
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Fate indices |
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0.46 | Calculated | Low leachability | ||||||||||||||||||||||||||
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9.47 X 10-03 | Calculated | - | |||||||||||||||||||||||||
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Medium | Calculated | - | ||||||||||||||||||||||||||
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Moderately mobile | Calculated | - |
Key metabolites |
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Soil | - | - |
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33 | F3 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) 3 = Unverified data of known source |
Low potential | |||||||
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Not available | - | |||||||||
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1009 | F4 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) Rat4 = Verified data |
Moderate | ||||||||
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- | L2 L = Pesticide manuals and hard copy reference books / other sources Rat2 = Unverified data of unknown source |
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50 | - | |||||||||
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> 5620 | L3 L = Pesticide manuals and hard copy reference books / other sources Anas platyrhynchos3 = Unverified data of known source |
Low | ||||||||
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5 | L3 L = Pesticide manuals and hard copy reference books / other sources Oncorhynchus mykiss3 = Unverified data of known source |
Moderate | ||||||||
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0.70 | F3 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) Pimephales promelas 35 day3 = Unverified data of known source |
Moderate | ||||||||
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28 | L3 L = Pesticide manuals and hard copy reference books / other sources Daphnia magna3 = Unverified data of known source |
Moderate | ||||||||
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0.32 | F3 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) Daphnia magna LOEC3 = Unverified data of known source |
Moderate | ||||||||
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1.7 | F3 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) Americamysis bahia3 = Unverified data of known source |
Moderate | ||||||||
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0.01 | F2 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) Lemna perpusilla 7 day2 = Unverified data of unknown source |
Moderate | ||||||||
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0.0036 | L3 L = Pesticide manuals and hard copy reference books / other sources Raphidocelis subcapitata3 = Unverified data of known source |
High | ||||||||
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> 100 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Low | ||||||||
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166 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Moderate | ||||||||
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General |
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High (class III) | - | - | ||||||||
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1009 | F4 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) Rat4 = Verified data |
Moderate | ||||||||
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2020 | E3 E = Manufacturers safety data sheets Rabbit3 = Unverified data of known source |
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> 5.03 | E3 E = Manufacturers safety data sheets Rat3 = Unverified data of known source |
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0.015 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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Health issues |
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Slightly toxic |
Handling issues |
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No information available | |||
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Health: H302 Environment: H400, H410 |
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Xn - Harmful: R22 N - Dangerous for the environment: R50, R53 |
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S2, S36, S61, S60 | |||
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II (Moderately hazardous) | |||
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ametryn | ||
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ametryne | ||
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Ametryn | ||
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ametryn | ||
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ametrina | ||
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ametrina | ||
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ametryn | ||
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ametryna | ||
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ametryn |
Record last updated: | 24/12/2020 |
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 |