Registration Dossier
Registration Dossier
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EC number: 213-037-4 | CAS number: 918-04-7
Partition coefficient
Administrative data
Link to relevant study record(s)
Description of key information
Using KOWWIN v1.68 the log Pow of the undissociated anionic part of the test item was calculated to be -3.43 at 25 °C.
Key value for chemical safety assessment
Additional information
The log Pow of the test item cannot be determined according OECD TG 107 or TG 117, because it is not stable in n-octanol and chromatography is not possible. Therefore, QSAR was performed with the undissociated acid and using KOWWIN v1.68 the log Pow of the test item was calculated to be -3.43 at 25°C.
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 Sodium 1-hydroxyethanesulphonate (Q)SAR results were used for partition coefficient. 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.
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