Registration Dossier
Registration Dossier
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EC number: 406-250-0 | CAS number: 72619-32-0 HALOXYFOP R-(+)-ME HERBICIDAL CHEMICAL
Endpoint summary
Administrative data
Description of key information
In a photochemical degradation in air study, the DT50 was calculated to be 6.14 hours. In a hydrolysis study, DT50 values for natural water, pH 7 and 9 buffers were 3 days, 43 days and 0.63 days, respectively. In natural water, pH 7 and 9 buffers, the test substance hydrolyzed to haloxyfop-R acid, which was then observed to be stable. In a photo transformation in water study, DT50 values at pH 5 buffer and natural water are 20 and 2 days. The test substance was stable to soil photolysis
The test substance is not ready biodegradable according to a study conducted by OECD 301D and EU Method C.6. In an OECD 309 study, the DT50 was 14.3 hours (at 9 µg/L) and 16.4 hours (at 90 µg/L) in surface water. The test substance was degraded very rapidly in fresh and sterile soils under aerobic conditions at 10 and 20°C with DT50s < 1 day.
Estimated whole fish BCF is <17. The coefficients of mobility ranged from 0.58 to 0.76 with intermediate to high mobility in soil. Henry's Law constant at pH 7 was 1.2E-3 Pa m³/mol
Additional information
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