Registration Dossier

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:
other: Test performed according to GLP

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2015
Report Date:
2015

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
EU Method A.8 (Partition Coefficient)
Qualifier:
according to
Guideline:
OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
Qualifier:
according to
Guideline:
EPA OPPTS 830.7550 (Partition Coefficient, n-octanol / H2O, Shake Flask Method)
GLP compliance:
yes (incl. certificate)
Type of method:
shake-flask method to: flask method
Partition coefficient type:
octanol-water

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
Identification V173520
Appearance White powder (determined by WIL Research Europe)
Purity/Composition Not indicated
Test substance storage At room temperature
Stable under storage conditions until 20 April 2017 (expiry date)
Stability at higher temperatures Yes, maximum temperature: 50°C(drying), maximum duration: 24 h
Molecular formula C23H25NO3S
Molecular weight 395.53

Study design

Analytical method:
other: UPLC-UV

Results and discussion

Partition coefficientopen allclose all
Type:
log Pow
Partition coefficient:
-1.8
Temp.:
20 °C
pH:
7
Remarks on result:
other: Anion of the substance
Type:
log Pow
Partition coefficient:
1.6
Temp.:
20 °C
pH:
7
Remarks on result:
other: Cation of the substance

Applicant's summary and conclusion

Conclusions:
The shake flask method at pH 7 was applied for the determination of the partition coefficient (Pow) of V173520.

Under the conditions of this test the Pow of the anion of the substance at 20°C and pH 7 was determined to be 1.5 × 10-2. It corresponds with a log Pow value of -1.8.

Under the conditions of this test the Pow of the cation of the substance at 20°C and pH 7 was determined to be 3.7 × 101. It corresponds with a log Pow value of 1.6.