Registration Dossier
Registration Dossier
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EC number: 441-100-8 | CAS number: 351197-46-1
Endpoint summary
Administrative data
Description of key information
Additional information
The biotic and the abiotic degradation of UAX-1179 (CAS: 351197-46-1) was investigated in experimental studies. Testing on biotic degradation showed that the test substance is not readily biodegradable (4% after 28 days). Even no hydrolysis was observed in aqueous solutions at pH 4, 7 and 9. A measured Koc of 1.7 indicates that the test substance UAX-1179 has a low potential to be adsorbed by organic carbon to soil. Calculated Henry's Law Constant (9.73E-015 Pa-m³/mole, HENRYWIN v3.20, Episuite) shows that UAX-1179 has only a low volatility and will not evaporate from the water phase to the air. However, if emitted from the water phase into the air the substance is susceptible to indirect photodegradation (DT50 < 24 h). This is in line with the distribution modelling using Mackay Level I model. 99.6% of the test substance will therefore partition to the water, 0.0000456% to the air, 0.198% to the soil and 0.2% to the sediment. Thus, it can be assumed that the test substance when entered the aquatic environment will remain in the water phase.
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