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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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Physical & Chemical properties

Partition coefficient

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Administrative data

Link to relevant study record(s)

Reference
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 and falling into its applicability domain, with adequate and reliable documentation / justification
Justification for type of information:
1. SOFTWARE:
The Estimation Programs Interface (EPI) SuiteTM

2. MODEL (incl. version number)
KOWWIN v1.68

3. SMILES OR OTHER IDENTIFIERS USED AS INPUT FOR THE MODEL:
Oc1c(C(=O)Nc2ccc(O)cc2)cccc1
CAS no. 526-18-1

4. SCIENTIFIC VALIDITY OF THE (Q)SAR MODEL
- Defined endpoint: Partition coefficient (Log Kow)

- Unambiguous algorithm: Available in the KOWWIN Help, in section "Meethodology".
- Defined domain of applicability: Available in the KOWWIN help, in section "Accuracy & Domain".
- Appropriate measures of goodness-of-fit and robustness and predictivity: Available in the KOWWIN help, in section "Accuracy & Domain".
- Mechanistic interpretation: estimated value from Log Kow.

5. APPLICABILITY DOMAIN
- Descriptor domain:
The KOWWIN training and validation datasets can be downloaded from the Internet at: http://esc.syrres.com/interkow/KowwinData.htm
Substructure searchable formats of the data can be downloaded at: http://esc.syrres.com/interkow/EpiSuiteData_ISIS_SDF.htm
 
6. ADEQUACY OF THE RESULT
Guideline:
other: REACH Guidance on QSARs R.6
Principles of method if other than guideline:
 KOWWIN’s "reductionist" fragment constant methodology (i.e. derivation via multiple regression) differs from the "constructionist" fragment constant methodology of Hansch and Leo (1979) that is available in the CLOGP Program (Daylight, 1995).
Specific details on test material used for the study:
SMILES : Oc1c(C(=O)Nc2ccc(O)cc2)cccc1
MOL FOR: C13 H11 N1 O3
MOL WT : 229.24
Type:
log Pow
Partition coefficient:
2.47
Remarks on result:
other: QSAR predicted value

KOWWIN predicted that 2-Hydroxy-N-(4-hydroxyphenyl)benzamide (also called osalmid) has a log Kow = 2.47

Description of key information

Key value for chemical safety assessment

Log Kow (Log Pow):
2.47
at the temperature of:
25 °C

Additional information