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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2020-12-01
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2020
Report date:
2020

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
- Principle of test: QSAR calculation for each of the constituents
- Calculation based on KOWWIN programme v1.68, Estimation Programs Interface Suite™ for Microsoft® Windows v 4.00. US EPA, United States Environmental Protection Agency, Washington, DC, USA.
- For further details please see under "Any other information on materials and methods incl. tables".
GLP compliance:
no
Type of method:
calculation method (fragments)
Partition coefficient type:
octanol-water

Test material

Constituent 1
Reference substance name:
Octanoic acid, monoester with 1,2-propanediol
EC Number:
953-046-7
Cas Number:
31565-12-5
Molecular formula:
not applicable to MCS
IUPAC Name:
Octanoic acid, monoester with 1,2-propanediol
Test material form:
liquid: viscous

Results and discussion

Partition coefficientopen allclose all
Type:
log Pow
Partition coefficient:
2.76
Remarks on result:
other: CAS_154747-99-6
Remarks:
CCCCCCCC(=O)OC(C)CO
Type:
log Pow
Partition coefficient:
2.76
Remarks on result:
other: CAS_23794-30-1
Remarks:
CCCCCCCC(=O)OCC(C)O
Type:
log Pow
Partition coefficient:
6.72
Remarks on result:
other: CAS_7384-98-7
Remarks:
CCCCCCCC(=O)OCC(C)OC(=O)CCCCCCC
Details on results:
For the MCS PGMC it can be concluded:
- the component 3, a diester, with a calculated value of 6.72, represents 21% of the overall Log kow
- the components 1 and 2, the monoesters, with each a calculated log kow value of 2.76 represents 77% of the overall log kow.

Applicant's summary and conclusion