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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

Physical & Chemical properties

Partition coefficient

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Administrative data

Endpoint:
partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Study period:
18.12.2012 - 03.01.2013
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2012
Report date:
2013

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other:
Principles of method if other than guideline:
Determination of ratio of concentrations of a compound in the two phases of a mixture of Octanol-Water at equilibrium
GLP compliance:
no
Type of method:
shake-flask method to: flask method
Partition coefficient type:
octanol-water

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium 2-amino-5-nitrobenzenesulphonate
EC Number:
250-299-9
EC Name:
Sodium 2-amino-5-nitrobenzenesulphonate
Cas Number:
30693-53-9
Molecular formula:
C6H6N2O5S.Na
IUPAC Name:
sodium 2-amino-5-nitrobenzenesulphonate
Constituent 2
Reference substance name:
sodium 2-amino-5nitrobenzenesulphonate
IUPAC Name:
sodium 2-amino-5nitrobenzenesulphonate

Results and discussion

Partition coefficient
Type:
Pow
Partition coefficient:
0.58
Temp.:
21 °C
pH:
6.5
Remarks on result:
other: log Pow = -0.236

Applicant's summary and conclusion

Conclusions:
The experimental value of octanol water partition co-efficient (Log Pow) of the substance sodium 2-amino-5nitrobenzenesulphonate is -0.236 at 21°C and at pH 6.50.
Executive summary:

The experimental value of octanol water partition co-efficient (Log Pow) of the substance sodium 2-amino-5nitrobenzenesulphonate is -0.236 at 21°C and at pH 6.50. This value indicates that the substance sodium 2-amino-5nitrobenzenesulphonate is hydrophillic in nature.