Registration Dossier
Registration Dossier
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EC number: 292-054-9 | CAS number: 90530-16-8
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
A realistic assessment of the Koc of the UVCB cannot be made with QSAR prediction.
- limited bioaccumulation potency;
- low volatility;
- sorb strongly to organic surfaces;
- some of the constituents could be adsorb to soil particles.
Key value for chemical safety assessment
- Koc at 20 °C:
- 1 082
Additional information
A realistic assessment of the Koc of the UVCB cannot be made due to the following three reasons:
· Koc wascalculated by EPI Suite KOCWIN v 2.00 based on 2 different approaches: molecular connectivityindex (MCI) and log Kow.
· There is a significant discrepancy in both predictions.The predicted byMCIKOCcoefficients range from510 to 6740 L/kg, while the predictions based onKOWare in the range from9 to 50 L/kg.
· Most of the predictions are out-of-domain affecting their reliability.
Koc prediction is based on constituents B andD predictions from the MCI method shown in the table below. The Koc prediction is>1000 L/kg but bear in mind that the prediction for constituent D is out-of-domain.
Constituents |
KOC, L/kg |
Sub-domains |
Domain |
B |
1082 |
In MW&Inst domain |
In domain |
D |
6737 |
In MW domain Out of -CN Inst domain |
Out of domain |
[LogKoc: 3.03]
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