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Diss Factsheets

Physical & Chemical properties

Water solubility

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Reference
Endpoint:
water solubility
Type of information:
(Q)SAR
Adequacy of study:
key study
Study period:
2021-05-18
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
Qualifier:
according to guideline
Guideline:
other: ECHA Guidance on information requirements and chemical safety assessment Chapter R.6: QSARs and grouping of chemicals
Version / remarks:
May 2008
Deviations:
no
Principles of method if other than guideline:
Calculation using WSKOWWIN v1.42 as part of EPISUITE
GLP compliance:
no
Type of method:
other: QSAR calculation
Specific details on test material used for the study:
SMILES: OCC(O)CCCCC
Key result
Water solubility:
15 470 mg/L
Conc. based on:
test mat.
Temp.:
25 °C
Remarks on result:
other: The substance is within the applicability domain of the model. The calculation is based on the uncharged molecule.
Conclusions:
Using WSKOWWIN v1.42 the water solubility of the test item was calculated to be 1.547E4 mg/L at 25 °C. The substance is within the applicability domain of the model.
Executive summary:

The water solubility was calculated using WSKOWWIN v1.42 as part of EPISuite v4.11 from US Environmental Protection Agency.


Using WSKOWWIN v1.42 the water solubility of the test item was calculated to be 1.547E4 mg/L at 25 °C (EPI Suite, 2014).


 


The adequacy of a prediction depends on the following conditions:


a) the (Q)SAR model is scientifically valid: the scientific validity is established according to the OECD principles for (Q)SAR validation;


b) the (Q)SAR model is applicable to the query chemical: a (Q)SAR is applicable if the query chemical falls within the defined applicability domain of the model;


c) the (Q)SAR result is reliable: a valid (Q)SAR that is applied to a chemical falling within its applicability domain provides a reliable result;


d) the (Q)SAR model is relevant for the regulatory purpose.


 


For assessment and jsutification of these 4 requirements the QMRF and QPRF files were developed and attached to this study record.


 


Description of the prediction Model


The prediction model was descripted using the harmonised template for summarising and reporting key information on (Q)SAR models. For more details please refer to the attached QSAR Model Reporting Format (QMRF) file. 


 


Assessment of estimation domain


The assessment of the estimation domain was documented in the QSAR Prediction Reporting Format file (QPRF). Please refer to the attached document for the details of the prediction and the assessment of the estimation domain.

Description of key information

Using WSKOWWIN v1.42 the water solubility of the test item was calculated to be 1.547E4 mg/L at 25 °C. The substance is within the applicability domain of the model.

Key value for chemical safety assessment

Water solubility:
15 470 mg/L
at the temperature of:
25 °C

Additional information

The water solubility was calculated using WSKOWWIN v1.42 as part of EPISuite v4.11 from US Environmental Protection Agency.


Using WSKOWWIN v1.42 the water solubility of the test item was calculated to be 1.547E4 mg/L at 25 °C (EPI Suite, 2014).


 


The adequacy of a prediction depends on the following conditions:


a) the (Q)SAR model is scientifically valid: the scientific validity is established according to the OECD principles for (Q)SAR validation;


b) the (Q)SAR model is applicable to the query chemical: a (Q)SAR is applicable if the query chemical falls within the defined applicability domain of the model;


c) the (Q)SAR result is reliable: a valid (Q)SAR that is applied to a chemical falling within its applicability domain provides a reliable result;


d) the (Q)SAR model is relevant for the regulatory purpose.


 


For assessment and jsutification of these 4 requirements the QMRF and QPRF files were developed and attached to this study record.


 


Description of the prediction Model


The prediction model was descripted using the harmonised template for summarising and reporting key information on (Q)SAR models. For more details please refer to the attached QSAR Model Reporting Format (QMRF) file. 


 


Assessment of estimation domain


The assessment of the estimation domain was documented in the QSAR Prediction Reporting Format file (QPRF). Please refer to the attached document for the details of the prediction and the assessment of the estimation domain.