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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2000-12-11 to 2000-12-14
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2002
Report date:
2002

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.8 (Partition Coefficient)
Version / remarks:
noVersion available
GLP compliance:
yes
Type of method:
HPLC method
Partition coefficient type:
octanol-water

Test material

Constituent 1
Chemical structure
Reference substance name:
5,6 beta-Epoxy-7 beta-hydroxy-15 beta,16 beta-methylene-3 beta-pivaloyloxy-5 beta-androstan-17-one
EC Number:
617-351-6
Cas Number:
82544-13-6
Molecular formula:
C25 H36 O5
IUPAC Name:
5,6 beta-Epoxy-7 beta-hydroxy-15 beta,16 beta-methylene-3 beta-pivaloyloxy-5 beta-androstan-17-one

Results and discussion

Partition coefficient
Key result
Type:
log Pow
Partition coefficient:
3.6
Temp.:
25 °C
pH:
7

Applicant's summary and conclusion

Executive summary:

The n-octanol/water partition coefficient of ZK 90346 was determined according to EU Testing Guideline A.8 (HPLC method based on OECD guideline no. 117) to be

log Pow = 3.60 (95 % confidence limits 3.40 - 3.79)

which indicates high lipophilicity. The method is based on the correlation of the reversed phase retention data of the test compound with those of reference compounds with known log Pow values.