Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
22 April 1996
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP study conducted in accordance with OECD Guideline.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1996
Report date:
1996

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
Deviations:
no
GLP compliance:
yes
Type of method:
HPLC method
Partition coefficient type:
octanol-water

Test material

Constituent 1
Chemical structure
Reference substance name:
N1-(5-methylhexan-2-yl)benzene-1,4-diamine
Cas Number:
63302-43-2
Molecular formula:
C13H22N2
IUPAC Name:
N1-(5-methylhexan-2-yl)benzene-1,4-diamine
Details on test material:
Distilled TRAE, AA4525. lot # Y-775
Active component: 1,4-Benzenediamine, N-(l,4-dimethylpentyl)
CAS No.: 63302-43-2

Study design

Analytical method:
high-performance liquid chromatography

Results and discussion

Partition coefficient
Type:
log Pow
Partition coefficient:
3.5
Remarks on result:
other: % RSD = 3.5. Temp and pH not specified
Details on results:
Linear regression analysis of the plot of log Pow vs log k' for the standards was used for the prediction of the partition coefficient N-Octanol/Water of the test material.
The partition coefficient N-Octanol/Water of TRAE, AA4525, lot # Y-775 was log Pow = 3.50, % RSD = 3.5

Any other information on results incl. tables

Predicted Log Pow for Test Material:

Compound

Samples

to

tr

k*

Logk'

Predicted

LogP

(xO-X)

Std Dev (indvl)

Average LogP

Std Dev (avg)

% RSD

TRAE

1.967

4.383

1.228

0.089

3.481

0.367

0.349

3.501

0.124

3.5

1.967

4.400

1.237

0.092

3.494

0.370

0.351

 

 

 

 

1.967

4.417

1.246

0.095

3.508

0.373

0.352

 

 

 

 

1.967

4.433

1.254

0.098

3.520

0.376

0.354

 

 

 

 

Applicant's summary and conclusion

Conclusions:
The partition coefficient N-Octanol/Water of TRAE, AA4525, lot # Y-775, was determined using the HPLC method and measured as: log Pow = 3.50
Executive summary:

The partition coefficient N-Octanol/Water of TRAE, AA4525, lot # Y-775, was determined using the HPLC method in accordance with OECD Guideline 117.

The log Pow (partition coefficient N-Octanol/Water) of the test substance was determined to be 3.50, % RSD = 3.5.