Registration Dossier

Administrative data

Endpoint:
partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP compliant study conducted according to OECD Guidelines, with no or minor deviations.

Data source

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

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
GLP compliance:
yes (incl. certificate)
Type of method:
HPLC method
Partition coefficient type:
octanol-water

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
other: Liquid
Details on test material:
Batch 9000771477
Purity 98.3%
Expiry date 23.10.2010

Results and discussion

Partition coefficient
Type:
log Pow
Partition coefficient:
2.6
Temp.:
35 °C
pH:
7
Remarks on result:
other: Testing performed at 35°C (column temperature), however the values can be considered to represent the values at an unspecified, probably ambient temperature since the HPLC method with reference substances was used.
Details on results:
Testing was performed at 35°C (column temperature), however the values can be considered to represent the values at an unspecified, probably ambient temperature since no mention is made in the guidelines of the temperature at which the tabulated reference substances log Kow values were determined. Partition coefficients of the test and reference substances are assumed to vary with temperature in the same way.

Applicant's summary and conclusion

Conclusions:
The chromatograms of Cumin Nitrile show one peak at an average retention time of 4.22 minutes, corresponding to a partition coefficient (log value) of 2.6.
Therefore the partition coefficient n-octanol/water of Cumin Nitrile: Log Pow = 2.6.