Tribufos |
![]() Last updated: 04/01/2021 |
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(Also known as: DEF; butiphos; butifos; tribuphos) |
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An organophosphate defoliant plant growth regulator used mainly in cotton crops | |
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Defoliation | |
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Cotton | |
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Unknown | |
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1965 |
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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Not applicable | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Yes | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Also used in |
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Chemical structure |
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None | |
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C₁₂H₂₇OPS₃ | |
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CCCCSP(=O)(SCCCC)SCCCC | |
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No data | |
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ZOKXUAHZSKEQSS-UHFFFAOYSA-N | |
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InChI=1S/C12H27OPS3/c1-4-7-10-15-14(13,16-11-8-5-2)17-12-9-6-3/h4-12H2,1-3H3 | |
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Yes |
General status |
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Plant growth regulator, Herbicide | |
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Organophosphate | |
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Synthetic | |
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Absorbed by leaves and induces early leaf abscission through changes in the levels of plant hormones | |
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78-48-8 | |
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201-120-8 | |
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None allocated | |
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074801 | |
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5125 | |
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314.5 | |
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S,S,S-tributyl phosphorotrithioate | |
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S,S,S-tributyl phosphorotrithioate | |
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S,S,S-tributyl phosphorotrithioate | |
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Not known | |
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Not known | |
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Not applicable | |
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Not applicable | |
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Spodoptera litura, Helicoverpa armigera, Pectinophora gossypiella, Spodoptera litura, Tetranychus urticae | |
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Colourless to pale yellow liquid | |
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Formulations |
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Usually supplied as an emulsifiable concentrate. |
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2.3 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Low | ||||||||
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-25 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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3.31 X 1005 | Calculated | - | |||||||
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5.52 | H4 H = The US ARS pesticide properties database (click here ) 4 = Verified data |
High | ||||||||
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1.06 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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0.35 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Low volatility | ||||||||
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2.90 X 10-02 | H4 H = The US ARS pesticide properties database (click here ) 4 = Verified data |
Non-volatile | ||||||||
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Degradation |
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32 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Moderately persistent | |||||||
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10 | 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 |
Non-persistent | ||||||||
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Literature data variable typically 1-20 days but some sources state DT₅₀ as high as 200-750 days. | ||||||||||
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4.6 | R3 R = Peer reviewed scientific publications 3 = Unverified data of known source |
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Cotton leaves, n=1 | ||||||||||
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Soil adsorption and mobility |
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- | H4 H = The US ARS pesticide properties database (click here ) 4 = Verified data |
Non-mobile | |||||||
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7700 | ||||||||||
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Other sources: 5000 mL g⁻¹ (DW4) | ||||||||||
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Fate indices |
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0.11 | Calculated | Low leachability | ||||||||||||||||||||||||||
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5.72 X 10-03 | Calculated | - | |||||||||||||||||||||||||
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Medium | Calculated | - | ||||||||||||||||||||||||||
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Non-mobile | Calculated | - |
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3050 | J4 J = Pesticide Action Network database (click here ) 4 = Verified data |
Threshold for concern | |||||||
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Not available | - | |||||||||
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234 | L3 L = Pesticide manuals and hard copy reference books / other sources Rat3 = Unverified data of known source |
Moderate | ||||||||
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- | L3 L = Pesticide manuals and hard copy reference books / other sources Rat3 = Unverified data of known source |
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10 | - | |||||||||
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> 142 | L3 L = Pesticide manuals and hard copy reference books / other sources Colinus virginianus3 = Unverified data of known source |
Moderate | ||||||||
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> 0.72 | L3 L = Pesticide manuals and hard copy reference books / other sources Lepomis macrochirus3 = Unverified data of known source |
Moderate | ||||||||
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0.0011 | P3 P = Other governments and regulators Cyprinodon variegatus growth3 = Unverified data of known source |
High | ||||||||
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> 0.12 | L3 L = Pesticide manuals and hard copy reference books / other sources Daphnia magna3 = Unverified data of known source |
Moderate | ||||||||
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0.00318 | P4 P = Other governments and regulators Daphnia magna4 = Verified data |
High | ||||||||
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> 0.15 | F3 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) Pseudokirchneriella subcapitata 7 day3 = Unverified data of known source |
Moderate | ||||||||
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44.2 | F4 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) 4 = Verified data |
Moderate | |||||||
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General |
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High (class III) | - | - | ||||||||
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234 | L3 L = Pesticide manuals and hard copy reference books / other sources Rat3 = Unverified data of known source |
Moderate | ||||||||
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850 | L3 L = Pesticide manuals and hard copy reference books / other sources Rat3 = Unverified data of known source |
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2.46 | L3 L = Pesticide manuals and hard copy reference books / other sources Rat3 = Unverified data of known source |
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List I | - | - | ||||||||
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Health issues |
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Liver, intestine and lung toxicant |
Handling issues |
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Corrosive | |||
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Health: H301, H310 Environment: H400, H410 |
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Xn - Harmful: R22, R38 | |||
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NL (Not listed) | |||
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tribufos | ||
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tribufos | ||
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Tribufos | ||
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tribufos | ||
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tribufos (s,s,s-tributil-fosforotritioato) | ||
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tribufos | ||
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tribufos | ||
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Record last updated: | 04/01/2021 |
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 |