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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
experimental study
Adequacy of study:
key study
Study period:
January, 2019 to April, 2021
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2021
Report date:
2021

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
Version / remarks:
13 April 2004
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.8 (Partition Coefficient - HPLC Method)
Version / remarks:
30 May 2008
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
HPLC method
Partition coefficient type:
octanol-water

Test material

Constituent 1
Reference substance name:
Reaction mass of (Tetramethylcyclotetrasiloxane propylether) prop-1-enylether bisphenol A and Di(tetramethylcyclotetrasiloxane propylether) bisphenol A
Cas Number:
203874-34-4
Molecular formula:
(OSiHxCH3)4-CH2-CH2 -CH2- O-C6H4-C(CH3)2-C6H4-0-CH2-CH2-CH2-(SiHxCH3O)4
IUPAC Name:
Reaction mass of (Tetramethylcyclotetrasiloxane propylether) prop-1-enylether bisphenol A and Di(tetramethylcyclotetrasiloxane propylether) bisphenol A
Test material form:
liquid
Details on test material:
Appearance: Pale yellow liquid

Study design

Analytical method:
high-performance liquid chromatography

Results and discussion

Partition coefficientopen allclose all
Key result
Type:
log Pow
Partition coefficient:
> 6.5
Temp.:
30 °C
pH:
ca. 7
Key result
Type:
Pow
Partition coefficient:
> 3 200 000
Temp.:
30 °C
pH:
ca. 7

Applicant's summary and conclusion

Conclusions:
The partition coefficient of the test item has been determined to be greater than 3.2 x 10E6, log10 Pow > 6.5.