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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
Study initiation date: 18 January 2010 Study completion date: 10. March 2010
Reliability:
1 (reliable without restriction)

Data source

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

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)
GLP compliance:
yes
Type of method:
HPLC method
Partition coefficient type:
octanol-water

Test material

Constituent 1
Chemical structure
Reference substance name:
2-methylvaleric acid
EC Number:
202-594-9
EC Name:
2-methylvaleric acid
Cas Number:
97-61-0
Molecular formula:
C6H12O2
IUPAC Name:
2-methylpentanoic acid

Results and discussion

Partition coefficientopen allclose all
Type:
Pow
Partition coefficient:
251
Temp.:
25 °C
pH:
3
Type:
log Pow
Partition coefficient:
2.4
Temp.:
25 °C
pH:
3

Applicant's summary and conclusion

Conclusions:
Partition coeffieient n-oetanol / water (Pow): Pow = 251 / log Pow = 2.4
Executive summary:

The partition coefficient n-octanol / water (Pow) of the test item was determined according to OECD guideline no. 117 [adopted on 13 April 2004] and EU test method A.8 [Directive 92/69/EEC, Official Journal L 383 A 1992] with the HPLC method.

Partition coeffieient n-oetanol / water (Pow): Pow = 251 / log Pow = 2.4

The test(s) used to generate this report was(were) carried out in compliance with the principles of Good Laboratory Practice (GLP) in accordance with the currently valid German Chemical Substance Act (Chemikaliengesetz – ChemG), the underlying Commission Directive 2004/10/EC of 11 February 2004 and the relevant OECD decision of the council on 26 November 1997 and that the results fully reflect those found in the study.