Registration Dossier
Registration Dossier
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EC number: 608-554-0 | CAS number: 3090-56-0
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
Adsorption to the solid soil phase is not expected. In addition, the substance is readily biodegradable (according to OECD criteria).
Key value for chemical safety assessment
- Koc at 20 °C:
- 6.3
Additional information
QSAR-disclaimer
In Article 13 of Regulation (EC) No 1907/2006, it is laid down that information on intrinsic properties of substances may be generated by means other than tests, provided that the conditions set out in Annex XI (of the same Regulation) are met.
According to Annex XI of Regulation (EC) No 1907/2006 (Q)SAR results can be used if (1) the scientific validity of the (Q)SAR model has been established, (2) the substance falls within the applicability domain of the (Q)SAR model, (3) the results are adequate for the purpose of classification and labeling and/or risk assessment and (4) adequate and reliable documentation of the applied method is provided.
For the assessment of the Vinylmercaptoethanol (CAS 3090-56-0) (Q)SAR results were used for the estimation of the adsorption potential. The criteria listed in Annex XI of Regulation (EC) No 1907/2006 are considered to be adequately fulfilled and therefore the endpoint(s) sufficiently covered and suitable for risk assessment.
Therefore, further experimental studies on the adsorption potential are not provided.
Assessment
In order to assess the adsorption potential of the substance, the Koc was estimated using (Q)SAR models. According to the MCI method of the KOCWIN v2.00 module of EPI Suite v4.11, Vinylmercaptoethanol (CAS 3090-56-0) has a Koc of 6.3 L/kg. The substance was within the model’s applicability domain. The MCI module is more reliable than the log Kow method of KOCWIN v2.00, which estimates the KOC based on the n-octanol/water partition coefficient (measured log Kow: 0.6 at pH 6 and 23 °C; BASF SE, 2017; report no. 17L00128). The latter method resulted in a Koc of 7.0 L/kg.; the substance was within the applicability domain of the estimation model.
Based on the available estimated data it can be concluded, that adsorption of Vinylmercaptoethanol (CAS 3090-56-0) to the solid soil phase is not expected.
[LogKoc: 0.799]
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