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Physical & Chemical properties

Partition coefficient

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Endpoint:
partition coefficient
Type of information:
(Q)SAR
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model, but not (completely) falling into its applicability domain, with adequate and reliable documentation / justification
Justification for type of information:
Please refer to the QMRF and QPRF files provided under the section attached justification.
Qualifier:
according to guideline
Guideline:
other: REACH guidance on QSAR R.6
Principles of method if other than guideline:
Estimates the log octanol-water partition coefficient, log KOW, of chemicals using an atom/fragment contribution method.
GLP compliance:
no
Type of method:
calculation method (fragments)
Partition coefficient type:
octanol-water
Specific details on test material used for the study:
SMILES: CCCCCCCCCCCC(=O)OCC(C)(C)C=NC(C)COC(C)COC(C)COCC(CC)(CN=CC(C)(C)COC(=O)CCCCCCCCCCC)COCC(C)OCC(C)OCC(C)N=CC(C)(C)COC(=O)CCCCCCCCCCC
Type:
log Pow
Partition coefficient:
20.432
Temp.:
25 °C
Remarks on result:
other: QSAR predicted value. The substance is not within the applicability domain of the model (Oligomer n=6).

LogKow(version 1.68 estimate): 20.43

 

SMILES : CCCCCCCCCCCC(=O)OCC(C)(C)C=NC(C)COC(C)COC(C)COCC(CC)(CN=CC(C)(C)COC(=

O)CCCCCCCCCCC)COCC(C)OCC(C)OCC(C)N=CC(C)(C)COC(=O)CCCCCCCCCCC

CHEM  :

MOL FOR: C75 H143 N3 O12

MOLWT :1278.99

-------+-----+--------------------------------------------+---------+--------

TYPE | NUM |       LOGKOW FRAGMENT DESCRIPTION        | COEFF | VALUE

-------+-----+--------------------------------------------+---------+--------

Frag | 16 | -CH3   [aliphatic carbon]               | 0.5473 | 8.7568

Frag | 43 | -CH2-  [aliphatic carbon]               | 0.4911 | 21.1173

Frag | 9 | -CH    [aliphatic carbon]               | 0.3614 | 3.2526

Frag | 6 | -O-    [oxygen, aliphatic attach]       |-1.2566 | -7.5396

Frag | 3 | -C(=O)O [ester, aliphatic attach]       |-0.9505 | -2.8515

Frag | 4 | -tert Carbon [3 or more carbon attach]  | 0.2676 | 1.0704

Frag | 3 | -N=C    [aliphatic attach]              |-0.0010 | -0.0030

Factor| 3 | -CH=N-C  [linear imine]  correction    |-1.2000**| -3.6000

Const |    | EquationConstant                        |        | 0.2290

-------+-----+--------------------------------------------+---------+--------

NOTE |    | An estimated coefficient (**) used                 |

-------+-----+--------------------------------------------+---------+--------

LogKow  = 20.4320

Conclusions:
Using KOWWIN v1.68 the logPow of the test item (Oligomer n=6) was calculated to be 20.432 at 25 °C. The substance is not within the applicability domain of the model. Thus the estimation may be less accurate.
Executive summary:

The logPow was calculated using KOWWIN v1.68 as part of EPISuite v4.11 from US Environmental Protection Agency.


Using KOWWIN v1.68 the log Kow of the test item was calculated to be 20.432 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.

Endpoint:
partition coefficient
Type of information:
(Q)SAR
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model, but not (completely) falling into its applicability domain, with adequate and reliable documentation / justification
Justification for type of information:
Please refer to the QMRF and QPRF files provided under the section attached justification.
Qualifier:
according to guideline
Guideline:
other: REACH guidance on QSAR R.6
Principles of method if other than guideline:
Estimates the log octanol-water partition coefficient, log KOW, of chemicals using an atom/fragment contribution method.
GLP compliance:
no
Type of method:
calculation method (fragments)
Partition coefficient type:
octanol-water
Specific details on test material used for the study:
SMILES: CCCCCCCCCCCC(=O)OCC(C)(C)C=NC(C)COCC(CC)(COCC(C)N=CC(C)(C)COC(=O)CCCCCCCCCCC)CN=CC(C)(C)COC(=O)CCCCCCCCCCC
Key result
Type:
log Pow
Partition coefficient:
19.859
Temp.:
25 °C
Remarks on result:
other: QSAR predicted value. The substance is not within the applicability domain of the model for Oligomer n=2.

LogKow(version 1.68 estimate): 19.86

 

SMILES : CCCCCCCCCCCC(=O)OCC(C)(C)C=NC(C)COCC(CC)(COCC(C)N=CC(C)(C)COC(=O)CCCC

CCCCCCC)CN=CC(C)(C)COC(=O)CCCCCCCCCCC

CHEM  :

MOL FOR: C63 H119 N3 O8

MOLWT :1046.67

-------+-----+--------------------------------------------+---------+--------

TYPE | NUM |       LOGKOW FRAGMENT DESCRIPTION        | COEFF | VALUE

-------+-----+--------------------------------------------+---------+--------

Frag | 12 | -CH3   [aliphatic carbon]               | 0.5473 | 6.5676

Frag | 39 | -CH2-  [aliphatic carbon]               | 0.4911 | 19.1529

Frag | 5 | -CH    [aliphatic carbon]               | 0.3614 | 1.8070

Frag | 2 | -O-    [oxygen, aliphatic attach]       |-1.2566 | -2.5132

Frag | 3 | -C(=O)O [ester, aliphatic attach]       |-0.9505 | -2.8515

Frag | 4 | -tert Carbon [3 or more carbon attach]  | 0.2676 | 1.0704

Frag | 3 | -N=C    [aliphatic attach]              |-0.0010 | -0.0030

Factor| 3 | -CH=N-C  [linear imine]  correction    |-1.2000**| -3.6000

Const |    | EquationConstant                        |        | 0.2290

-------+-----+--------------------------------------------+---------+--------

NOTE |    | An estimated coefficient (**) used                 |

-------+-----+--------------------------------------------+---------+--------

LogKow  = 19.8592

Conclusions:
Using KOWWIN v1.68 the logPow of the test item (Oligomer n=2) was calculated to be 19.8592 at 25 °C. The substance is not within the applicability domain of the model. Thus the estimation may be less accurate.
Executive summary:

The logPow was calculated using KOWWIN v1.68 as part of EPISuite v4.11 from US Environmental Protection Agency.


Using KOWWIN v1.68 the log Kow of the test item was calculated to be 19.86 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.

Endpoint:
partition coefficient
Type of information:
(Q)SAR
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model, but not (completely) falling into its applicability domain, with adequate and reliable documentation / justification
Justification for type of information:
Please refer to the QMRF and QPRF files provided under the section attached justification.
Qualifier:
according to guideline
Guideline:
other: REACH guidance on QSAR R.6
Principles of method if other than guideline:
Estimates the log octanol-water partition coefficient, log KOW, of chemicals using an atom/fragment contribution method.
GLP compliance:
no
Type of method:
calculation method (fragments)
Partition coefficient type:
octanol-water
Specific details on test material used for the study:
SMILES: CCCCCCCCCCCC(=O)OCC(C)(C)C=NC(C)COC(C)COC(C)COC(C)COCC(CC)(COCC(C)OCC(C)OCC(C)N=CC(C)(C)COC(=O)CCCCCCCCCCC)COCC(C)OCC(C)OCC(C)N=CC(C)(C)CO
C(=O)CCCCCCCCCCC
Type:
log Pow
Partition coefficient:
21.005
Temp.:
25 °C
Remarks on result:
other: QSAR predicted value. The substance is not within the applicability domain of the model (Oligomer n=10).

LogKow(version 1.68 estimate): 21.00

 

SMILES : CCCCCCCCCCCC(=O)OCC(C)(C)C=NC(C)COC(C)COC(C)COC(C)COCC(CC)(COCC(C)OCC

(C)OCC(C)N=CC(C)(C)COC(=O)CCCCCCCCCCC)COCC(C)OCC(C)OCC(C)N=CC(C)(C)CO

C(=O)CCCCCCCCCCC

CHEM  :

MOL FOR: C87 H167 N3 O16

MOLWT :1511.31

-------+-----+--------------------------------------------+---------+--------

TYPE | NUM |       LOGKOW FRAGMENT DESCRIPTION        | COEFF | VALUE

-------+-----+--------------------------------------------+---------+--------

Frag | 20 | -CH3   [aliphatic carbon]               | 0.5473 | 10.9460

Frag | 47 | -CH2-  [aliphatic carbon]               | 0.4911 | 23.0817

Frag | 13 | -CH    [aliphatic carbon]               | 0.3614 | 4.6982

Frag | 10 | -O-    [oxygen, aliphatic attach]       |-1.2566 |-12.5660

Frag | 3 | -C(=O)O [ester, aliphatic attach]       |-0.9505 | -2.8515

Frag | 4 | -tert Carbon [3 or more carbon attach]  | 0.2676 | 1.0704

Frag | 3 | -N=C    [aliphatic attach]              |-0.0010 | -0.0030

Factor| 3 | -CH=N-C  [linear imine]  correction    |-1.2000**| -3.6000

Const |    | EquationConstant                         |        | 0.2290

-------+-----+--------------------------------------------+---------+--------

NOTE |    | An estimated coefficient (**) used                 |

-------+-----+--------------------------------------------+---------+--------

LogKow  = 21.0048

Conclusions:
Using KOWWIN v1.68 the logPow of the test item (Oligomer n=10) was calculated to be 21.0048 at 25 °C. The substance is not within the applicability domain of the model. Thus the estimation may be less accurate.
Executive summary:

The logPow was calculated using KOWWIN v1.68 as part of EPISuite v4.11 from US Environmental Protection Agency.


Using KOWWIN v1.68 the log Kow of the test item was calculated to be 21.0048 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.

Endpoint:
partition coefficient
Data waiving:
study technically not feasible
Justification for data waiving:
the study does not need to be conducted because the substance decomposes

Description of key information

The study does not need to be conducted because the substance decomposes rapidly. Three further QSAR calculation with different Oligomer chain length were added. The log Pow of those was calculated to be 19.86, 20.43 and 21.00.

Key value for chemical safety assessment

Log Kow (Log Pow):
19.86
at the temperature of:
20 °C

Additional information

According to column 2 of Annex VII Regulation (EC) No 1907/2006 (REACH), due to the rapid hydrolysis of SIKA HArdener LTJ in water the test cannot be performed and was replaced by calculation method for the determination of log Pow:


The result was determined by QSAR estimation with the programme EPIWIN using KOWWIN v1.68 that is recommended in the REACH Guidance on information requirements and chemical safety assessment (2008), Chapter R.7.1.7.3, Table R.7.1-21. The log Pow was calculated for the Oligomere n=2, 6 and 10, respectively. The log Pow was calculated to be 19.86, 20.43 and 21.00, respectively.