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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
other: Guideline study, 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
Guideline:
OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7570 (Partition Coefficient, n-octanol / H2O, Estimation by Liquid Chromatography)
Qualifier:
according to guideline
Guideline:
EU Method A.8 (Partition Coefficient)
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:
3-methyl-5-oxopentyl acetate
EC Number:
927-505-7
Cas Number:
101153-84-8
Molecular formula:
C8H14O3
IUPAC Name:
3-methyl-5-oxopentyl acetate
Test material form:
other: liquid
Details on test material:
Commercial Name: Acetoxy Methyl Pentanal
Chemical Nature: 5-Acetoxy-3-methylpentanal
Emperical Formula: C8H14O3
Molecular Weight: 158.19 g/mol
CAS No.: 101153-84-8

Results and discussion

Partition coefficient
Type:
log Pow
Partition coefficient:
0.9
Temp.:
35 °C
pH:
7
Details on results:
Note: 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:
Partition coefficient n-octanol/water of Acetoxy Methyl Pentanal: log Pow = 0.9
Executive summary:

The partition coefficient n-octanol/water of Acetoxy Methyl Pentanal 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: Partition coefficient n-octanol/water of Acetoxy Methyl Pentanal: log Pow = 0.9