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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Report date:
2020

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
GLP compliance:
yes
Type of method:
HPLC method
Partition coefficient type:
octanol-water

Test material

Constituent 1
Chemical structure
Reference substance name:
2,2',4,4',6,6'-hexanitrostilbene
EC Number:
243-494-5
EC Name:
2,2',4,4',6,6'-hexanitrostilbene
Cas Number:
20062-22-0
Molecular formula:
C14H6N6O12
IUPAC Name:
1,3,5-trinitro-2-[(E)-2-(2,4,6-trinitrophenyl)ethenyl]benzene
Test material form:
solid: crystalline
Specific details on test material used for the study:
Batch no. 18909-1
Composition 100%
Expiry date 27/2/2028

Study design

Analytical method:
high-performance liquid chromatography

Results and discussion

Partition coefficient
Type:
log Pow
Partition coefficient:
2
Temp.:
25 °C
pH:
4 - 5
Remarks on result:
other: the study is in progress
Details on results:
Variations in the retention times of reference items and test item are very small. Therefore,
a stable configuration of the HPLC-column can be assumed.
The correlation log k/log POW is good: the coefficient of determination r2 was calculated with
0.9926. This value was considered as sufficiently high to use the calibration function for the
determination of the log POW of the test item HEXANITROSTILBENE.
The chromatogram of the test item HEXANITROSTILBENE gave one peak with a retention
time of 2.269 min (mean).
Using the correlation log k / log POW, the log POW of the test item HEXANITROSTILBENE
was calculated as 1.971 ± 0.003 (mean ± standard deviation).
The log POW of the test item HEXANITROSTILBENE will be stated as 2.0.
No observations were made which might cause doubts concerning the validity of the study
outcome.

Applicant's summary and conclusion

Conclusions:
The log POW of the test item HEXANITROSTILBENE will be stated as 2.0.