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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2008
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: quality controlled study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2008

Materials and methods

Principles of method if other than guideline:
The partition coefficient is calculated by dividing the solubility in n-Octanol by the solubility in water.
GLP compliance:
yes (incl. QA statement)
Remarks:
ISO9001
Type of method:
other: dissolution test
Partition coefficient type:
octanol-water

Test material

Constituent 1
Chemical structure
Reference substance name:
2,3-Dihydro-1,4-benzodioxin-2-yl(piperazin-1-yl)methanone
EC Number:
700-374-1
Cas Number:
70918-00-2
Molecular formula:
C13H16N2O3
IUPAC Name:
2,3-Dihydro-1,4-benzodioxin-2-yl(piperazin-1-yl)methanone
Details on test material:
- Name of test material (as cited in study report): N-(1,4-Benzodioxan-2-carbonyl) piperazine base
- Substance type: organic
- Physical state: solid

Study design

Analytical method:
other: dissolution test

Results and discussion

Partition coefficient
Type:
Pow
Partition coefficient:
0.103
Remarks on result:
other: analysis was done at room temperature; no data on the pH during dissolution is available
Details on results:
The partition coefficient calculated by dividing the solubility in n-octanol of 34.4827 g/L by the solubility in water of 333.33 g/L equals 0.10344.

Any other information on results incl. tables

The solubility in n-octanol is 34.4827 g/L and the solubility in water is 333.33 g/L.

All tests were done at room temperature (not explicitly mentioned, oral communication).

The pH of the solutions was neither measured before nor after the test.

Applicant's summary and conclusion

Conclusions:
The Pow is 0.10344.
Executive summary:

The Pow (partition coefficient n-octanol/water) of 2,3-dihydro-1,4-benzodioxin-2-yl(piperazin-1-yl)methanone is 0.10344.

Pow = 0.10344.