Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
Qualifier:
according to guideline
Guideline:
EU Method A.8 (Partition Coefficient - Shake Flask Method)
Principles of method if other than guideline:
As the test substance is a salt and was considered to be surface active, the flask shaking method, the HPLC method and calculation method are not applicable.
GLP compliance:
yes
Type of method:
estimation method (solubility ratio)
Partition coefficient type:
octanol-water

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
452-830-1
EC Name:
-
Molecular formula:
C27 H44 N2 Na2 O6 S3
IUPAC Name:
Equimolecular mixture of - Disodium 2-Hexadecylsulfanyl-1-(4-sulfo-butyl)-1H- benzoimidazole-5-sulfonate - Disodium 2-Hexadecylsulfanyl-3-(4-sulfo-butyl)-1H- benzoimidazole-5-sulfonate

Study design

Analytical method:
high-performance liquid chromatography

Results and discussion

Partition coefficient
Type:
log Pow
Partition coefficient:
>= -4.8 - <= -4.6
Temp.:
20 °C
Remarks on result:
other: Mean value: -4.7

Applicant's summary and conclusion

Conclusions:
The logPow of the substance was determined with the estimation method. The log Pow was in the range of -4.6 and -4.8 (mean -4.7).