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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
The study was conducted between 16 November 2016 and 22 December 2016.
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report date:
2016

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.8 (Partition Coefficient - HPLC Method)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7570 (Partition Coefficient, n-octanol / H2O, Estimation by Liquid Chromatography)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
HPLC method
Partition coefficient type:
octanol-water

Test material

Constituent 1
Chemical structure
Reference substance name:
Ethyl (E)-4-methylpent-2-enoate
EC Number:
811-774-1
Cas Number:
15790-86-0
Molecular formula:
C8H14O2
IUPAC Name:
Ethyl (E)-4-methylpent-2-enoate
Test material form:
liquid
Specific details on test material used for the study:
Lot No.: SC00019481
Aspect: colourless liquid
Purity: 98.9%

Study design

Analytical method:
high-performance liquid chromatography

Results and discussion

Partition coefficient
Key result
Type:
log Pow
Partition coefficient:
3.5
Temp.:
35 °C
pH:
7
Details on results:
Testing was performed at 35°C (column temperature), however the values can be considered to represent the values at an unspecified ambient temperature.

Applicant's summary and conclusion

Conclusions:
In the conditions of the test, the chromatograms of Ethyl Methyl Pentenoate show one peak at average retention times of 4.108 minutes, corresponding to a partition coefficient (log value) of 2.7.
Therefore:
Partition coefficient n-octanol/water of Ethyl Methyl Pentenoate is log Pow = 2.7
Executive summary:

The partition coefficient n-octanol/water of Ethyl Methyl Pentenoate was determined by the Reverse Phase Chromatographic Method according to the OECD Guidelines for Testing of Chemicals, Method No. 117.

The result is:

Partition Coefficient n-octanol/water of Ethyl Methyl Pentenoate: log Pow = 2.7