Bromacil (Ref: DPX N0976) |
![]() Last updated: 02/01/2021 |
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(Also known as: borocil; herbicide 976) |
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A soil acting uracil herbicide used to control a wide variety of annual and perennial weeds mainly on non-crop areas and fruit | |
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Barnyardgrass; Crabgrass; Henbit; Lambsquarters; Purslane; Annual sedge; Mustard; Bermudagrass; Nutsedge | |
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Fruit including citrus, pineapples; Brush; Roads, rights-of-way, railways, pavements | |
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Current | |
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1961, 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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Not applicable | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Expired | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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- | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Yes | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Also used in |
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Australia, USA |
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Chemical structure |
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A chiral molecule esixting in the R- and S-forms | |
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C₉H₁₃BrN₂O₂ | |
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CCC(C)N1C(=O)C(=C(NC1=O)C)Br | |
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No data | |
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CTSLUCNDVMMDHG-UHFFFAOYSA-N | |
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InChI=1S/C9H13BrN2O2/c1-4-5(2)12-8(13)7(10)6(3)11-9(12)14/h5H,4H2,1-3H3,(H,11,14) | |
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Yes |
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Common Name | Relationship | Link |
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bromacil | Unstated isomer | ![]() |
General status |
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Herbicide | |
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Uracil | |
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Synthetic | |
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Absorbed mainly via root system, non-selective. Inhibits photosynthesis (photosystem II). | |
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314-40-9 | |
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206-245-1 | |
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139 | |
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012301 | |
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9411 | |
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261.12 | |
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rac-(3R)-5-bromo-3-(butan-2-yl)-6-methylpyrimidine-2,4(1H,3H)-dione | |
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(RS)-5-bromo-3-sec-butyl-6-methyluracil | |
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5-bromo-6-methyl-3-(1-methylpropyl)-2,4(1H,3H)-pyrimidinedione | |
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Potential groundwater contaminant; Potential marine pollutant | |
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- | |
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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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- | |
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White crystals |
Formulations |
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Available in a variety of formulations including wettable powders, water soluble liquids and granules. |
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815 | G4 G = Extension Toxicology network database EXTOXNET (click here ) 4 = Verified data |
High | ||||||||
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167000 | C4 C = AGRITOX (click here ) Acetone4 = Verified data |
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134000 | C4 C = AGRITOX (click here ) Ethanol4 = Verified data |
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32000 | C4 C = AGRITOX (click here ) Xylene4 = Verified data |
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158.5 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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Decomposes before boiling | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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158 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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Not expected to self ignite; Not highly flammable | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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7.59 X 1001 | Calculated | - | |||||||
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1.88 | H4 H = The US ARS pesticide properties database (click here ) 4 = Verified data |
Low | ||||||||
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1.59 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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9.27 | H4 H = The US ARS pesticide properties database (click here ) 4 = Verified data |
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Very weak acid | |||||||||||
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4.10 X 10-02 | H4 H = The US ARS pesticide properties database (click here ) 4 = Verified data |
Low volatility | ||||||||
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1.50 X 10-05 | H4 H = The US ARS pesticide properties database (click here ) 4 = Verified data |
Non-volatile | ||||||||
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Degradation |
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60 | R4 R = Peer reviewed scientific publications 4 = Verified data |
Moderately persistent | |||||||
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Other sources: DT₅₀ 5-6 months in silt loam soil (R3) | ||||||||||
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Stable | CA3 CA = Medical and toxicological databases and information systems e.g. TOXNET (click here ) 3 = Unverified data of known source |
Stable | |||||||
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Stable at pH 5 and pH 7 | ||||||||||
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Stable | R4 R = Peer reviewed scientific publications 4 = Verified data |
Stable | |||||||
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Stable at all relevant pHs | ||||||||||
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Soil adsorption and mobility |
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- | G3 G = Extension Toxicology network database EXTOXNET (click here ) 3 = Unverified data of known source |
Mobile | |||||||
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32 | ||||||||||
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Other sources: log Koc 1.51 (Q3); General literature: Koc 2.3 to 289 (CA3) | ||||||||||
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2.9 | R4 R = Peer reviewed scientific publications 4 = Verified data |
Moderately mobile | |||||||
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117 | ||||||||||
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0.917 | ||||||||||
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Data for freshwater sediments Kf range 0.56-6.35 mL.g, Kfoc range 26.3-289 mL g⁻¹, 1/n range 0.89-0.98, Soils = 9 | ||||||||||
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Fate indices |
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3.44 | Calculated | High leachability | ||||||||||||||||||||||||||
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5.51 X 10-01 | Calculated | - | |||||||||||||||||||||||||
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Medium | Calculated | - | ||||||||||||||||||||||||||
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Mobile | Calculated | - |
Other known metabolites |
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5-bromo-6-methyluracil | - | Soil (Aerobic) | - | - | |||||
5-bromo-3-sec-butyl-6-hydroxymethyluracil | - | Soil (Aerobic) | - | - | |||||
3-sec-butyl-6-methyluracil | - | Soil (Aerobic) | - | - | |||||
5-bromo-3-(alpha-hydroxymethylpropyl)-6-methyluracil | - | Soil (Aerobic) | - | - |
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2.8 | F4 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) Whole fish4 = Verified data |
Low potential | |||||||
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Not available | - | |||||||||
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1300 | L3 L = Pesticide manuals and hard copy reference books / other sources Rat3 = Unverified data of known source |
Moderate | ||||||||
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- | L2 L = Pesticide manuals and hard copy reference books / other sources Rat 2 year2 = Unverified data of unknown source |
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50 | - | |||||||||
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> 2250 | L3 L = Pesticide manuals and hard copy reference books / other sources Colinus virginianus3 = Unverified data of known source |
Low | ||||||||
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> 36 | L3 L = Pesticide manuals and hard copy reference books / other sources Lepomis macrochirus3 = Unverified data of known source |
Moderate | ||||||||
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> 95.6 | L2 L = Pesticide manuals and hard copy reference books / other sources Pimephales promelas2 = Unverified data of unknown source |
Low | ||||||||
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> 119 | L3 L = Pesticide manuals and hard copy reference books / other sources Daphnia magna3 = Unverified data of known source |
Low | ||||||||
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> 67.0 | 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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0.013 | C4 C = AGRITOX (click here ) Unknown species4 = Verified data |
Moderate | ||||||||
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0.01 | J4 J = Pesticide Action Network database (click here ) Green algae population study4 = Verified data |
Moderate | ||||||||
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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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Harmless | [Dose: 960 g ha⁻¹] AA2 AA = IOBC Database on classification of side effects to beneficial organisms, 2005 Typhlodromus pyri2 = Unverified data of unknown source |
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Harmless | [Dose: 960 g ha⁻¹] AA2 AA = IOBC Database on classification of side effects to beneficial organisms, 2005 Chrysoperla carnea2 = Unverified data of unknown source |
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General |
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High (class III) | - | - | ||||||||
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1300 | L3 L = Pesticide manuals and hard copy reference books / other sources Rat3 = Unverified data of known source |
Moderate | ||||||||
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5000 | L3 L = Pesticide manuals and hard copy reference books / other sources Rabbit3 = Unverified data of known source |
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5.6 | L3 L = Pesticide manuals and hard copy reference books / other sources Rat3 = Unverified data of known source |
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0.13 | 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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May cause inflammation of the stomach and intestinal mucous membranes, gastroenteritis or liver damage |
Handling issues |
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No information available | |||
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Health: H302, H315, H319, H335 Environment: H400, H410 |
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N - Dangerous for the environment: R50/53 | |||
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S2, S13, S20/21, S35, S46, S57 | |||
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U (Unlikely to present an acute hazard) | |||
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3077 | |||
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Packging Group III (minor danger) |
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bromacil | ||
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bromacil | ||
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Bromacil | ||
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bromacil | ||
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bromacile | ||
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bromacilo | ||
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bromacyl | ||
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Record last updated: | 02/01/2021 |
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 |