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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2015
Report date:
2015

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:
EU Method A.8 (Partition Coefficient - HPLC Method)
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7570 (Partition Coefficient, n-octanol / H2O, Estimation by Liquid Chromatography)
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:
(E)-3,5-dimethylhex-3-en-2-one
EC Number:
606-014-9
Cas Number:
18402-86-3
Molecular formula:
C8H14O
IUPAC Name:
(E)-3,5-dimethylhex-3-en-2-one
impurity 1
Reference substance name:
(E)-3,4-dimethylhex-4-en-2-one
Cas Number:
20685-50-1
Molecular formula:
C8H14O
IUPAC Name:
(E)-3,4-dimethylhex-4-en-2-one
impurity 2
Reference substance name:
3,5-dimethylhex-4-en-2-one
Cas Number:
36616-77-0
Molecular formula:
C8H14O
IUPAC Name:
3,5-dimethylhex-4-en-2-one
Test material form:
liquid
Specific details on test material used for the study:
Commercial Name: Secodemone
Givaudan Code No.: 0029283
Chemical Nature: (E)-3,5-dimethylhex-3-en-2-one
Empirical Formula: C8H14O
Molecular weight: 126.20 g/mol
CAS No.: 18402-86-3
Aspect: colourless to pale yellow liquid
Lot No.: SC00010091
Expiration Date: October 31, 2016

Results and discussion

Partition coefficient
Type:
log Pow
Partition coefficient:
2.3
Temp.:
35 °C
pH:
7
Details on results:
N.B.: The determination was performed at 35°C (temperature of the column), but the value obtained above can be considered to represent the value at an unspecified, probably ambient temperature since no mention is made in the guidelines of the temperature at which the tabulated reference substances log Pow 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 Partition Coefficient n-octanol/water of Secodemone was determined by the Reverse Phase High Performance Liquid Chromatographic Method according to the OECD Guidelines for Testing of Chemicals, Method No. 117.
The result is: logPow = 2.3