Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Study period:
November 2018
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
Qualifier:
according to guideline
Guideline:
other: Estimation Programs Interface Suite™ for Microsoft® Windows
Version / remarks:
v 4.11. United States Environmental Protection Agency, Washington, DC, USA.
GLP compliance:
not specified
Type of method:
HPLC method
Partition coefficient type:
octanol-water

Test material

Constituent 1
Chemical structure
Reference substance name:
2-[2,4-bis(tert-pentyl)phenoxy]-N-(3,5-dichloro-4-ethyl-2-hydroxyphenyl)butyramide
EC Number:
300-634-0
EC Name:
2-[2,4-bis(tert-pentyl)phenoxy]-N-(3,5-dichloro-4-ethyl-2-hydroxyphenyl)butyramide
Cas Number:
93951-12-3
Molecular formula:
C28H39Cl2NO3
IUPAC Name:
2-[2,4-bis(tert-pentyl)phenoxy]-N-(3,5-dichloro-4-ethyl-2-hydroxyphenyl)butyramide
Test material form:
solid
Details on test material:
Batch 44029
colour : White to off-white
retest date : 01/06/2019

Study design

Analytical method:
high-performance liquid chromatography

Results and discussion

Partition coefficientopen allclose all
Type:
log Pow
Partition coefficient:
> 6
Remarks on result:
not determinable because of methodological limitations
Key result
Type:
log Pow
Partition coefficient:
10.39
Remarks on result:
other: calculation
Details on results:
The HPLC method according to OECD 117 shows a logPow >> 6. The accurate result could not be determinated by this method.

A calculation method had been used in order to eslimate a value : Estimation Programs Interface (EPI) SuiteTM method from the US Environmental Protection Agency's Office of Pollution Prevention and Toxics and Syracuse Research Corporation (SRC).

Applicant's summary and conclusion

Conclusions:
LogP of 2-[2,4-bis(tert-pentyl) phenoxy]-N-(3,5-dichloro-4-ethyl-2 hydroxyphenyl)butyramide was calculated by the Estimation Programs Interface (EPI) SuiteTM software.
LogP estimated = 10.39

According to the HPLC method, the logP was estimated >> 6