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Partition coefficient

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Reference
Endpoint:
partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: data from experimental reports
Qualifier:
according to guideline
Guideline:
OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
Principles of method if other than guideline:
Determination of Partition Coefficient (n-Octanol/water) of n-Hexylamine (CAS No. 111-26-2) by Shake Flask Method (OECD Guideline No. 107)
GLP compliance:
not specified
Type of method:
shake-flask method to: flask method
Partition coefficient type:
octanol-water
Analytical method:
high-performance liquid chromatography
Type:
log Pow
Partition coefficient:
0.022
Temp.:
22 °C
Remarks on result:
other: no additional details mentioned

Tables :

Estimation of Pow and log Pow ofn-Hexylamine(CAS NO. 111-26-2).

Table-1

WATER PHASE

Assay

Ratio

(n-octanol/water)

V(ml)

Concentration (mg/l) of test item

Mean concentration mg/l

Dilution factor

R1

R2

Assay-1

1/2

40

4950.063

4904.564

4927.313

10

Assay-2

1/1

30

5021.287

5001.868

5011.577

10

Assay-3

2/1

20

2957.085

2946.399

2951.742

10

 

 

Table-2

OCTANOL PHASE

Assay

Ratio

(n-octanol/water)

V(ml)

Concentration (mg/l) of test item

Mean concentration mg/l

Dilution factor

R1

R2

Assay-1

1/2

20

4342.160

4329.187

4335.673

10

Assay-2

1/1

30

4255.857

4254.725

4255.291

10

Assay-3

2/1

40

4664.566

4655.518

4660.042

10

 

 

 

 

Table-3

Assay

 

Ratio

(n-octanol/water)

 Cn-octanol/ Cwater

Pow

Log Pow

Mean of Log Pow

Assay-1

 

1/2

43356.73/49273.13

0.879

-0.056

0.022±0.149

Assay-2

 

1/1

42552.91/50115.77

0.849

-0.071

Assay-3

 

2/1

46600.42/29517.42

1.57

0.195

 

Conclusions:
The partition coefficient of test substance CAS No. 111-26-2 was determined as per the shake flask method (OECD Guideline-107). The log Pow value was determined to be 0.022±0.149 @22 0C.
Executive summary:

The partition coefficient of test substance CAS No. 111-26-2 was determined as per the shake flask method (OECD Guideline-107). The log Pow value was determined to be 0.022±0.149@220C.

Description of key information

The octanol water partition coefficient of the test chemical was determined according to OECD Guidelines 107.The experimental logPow of hexylaminewas 2.31 ± 0.04.

Key value for chemical safety assessment

Log Kow (Log Pow):
2.31

Additional information