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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Diss Factsheets

Administrative data

Endpoint:
partition coefficient
Type of information:
(Q)SAR
Adequacy of study:
key study
Study period:
19 May 2015
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The quoted value is an estimate based on an internationally recognised modelling programme
Justification for type of information:
QSAR prediction: migrated from IUCLID 5.6

Data source

Reference
Reference Type:
other: QSAR
Title:
Unnamed
Year:
2015
Report date:
2015

Materials and methods

Principles of method if other than guideline:
WSKOWWIN estimates a log Kow for every SMILES notation by using the estimation engine from the KOWWIN Program (SRC, 2000). The KOWWIN training and validation datasets can be downloaded from the Internet at: http://esc.syrres.com/interkow/KowwinData.htm
KOWWIN uses a "fragment constant" methodology to predict log P. In a "fragment constant" method, a structure is divided into fragments (atom or larger functional groups) and coefficient values of each fragment or group are summed together to yield the log P estimate.
GLP compliance:
no
Partition coefficient type:
octanol-water

Test material

Constituent 1
Chemical structure
Reference substance name:
Phenol, isopropylated
EC Number:
291-826-2
EC Name:
Phenol, isopropylated
Cas Number:
90480-88-9
Molecular formula:
Not appropriate to the UVCB substance
IUPAC Name:
2,4-bis(propan-2-yl)phenol; 2-(propan-2-yl)phenol; 4-(propan-2-yl)phenol; phenol
Details on test material:
Name: Isopropylated phenol

Results and discussion

Partition coefficient
Type:
log Pow
Partition coefficient:
4.355
Remarks on result:
other: Range: 1.46 to 5.88
Details on results:
The substance is a UVCB therefore various structures were assessed (see Appendix I of QPRF attached below for details of the structure).

Any other information on results incl. tables

The results for each of the assessed structures together with the QPRF are attached below.

Applicant's summary and conclusion

Conclusions:
The Log Kow value of the substance is considered to be in the range 1.46 to 5.88 with a mean value of 4.355 based on a QSAR driven by the EPI Suite v4.10
Executive summary:

The Log Kow value of the substance is considered to be in the range 1.46 to 5.88 with a mean value of 4.355 based on a QSAR (WSKOWWIN v1.42) driven by the EPI Suite v4.10.