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Physical & Chemical properties

Partition coefficient

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2012-07-25 to 2012-07-31
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.8 (Partition Coefficient)
Version / remarks:
May 2008
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
Version / remarks:
adopted 13 April 2004
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
HPLC method
Partition coefficient type:
octanol-water
Analytical method:
high-performance liquid chromatography
Type:
log Pow
Partition coefficient:
1.301
Temp.:
23.3 °C
Remarks on result:
other: pH not reported

Reference item

Retention time
[min]

Mean retention time
[min]

logPOW

 

2-Butanone

1.899

1.900

0.3

1.901

Benzyl alcohol

2.380

2.381

1.1

2.381

Benzonitrile

3.314

3.315

1.6

3.316

Methyl benzoate

6.204

6.206

2.1

6.208

Atrazine

6.606

6.608

2.6

6.610

Chlorobenzene

12.717

12.726

2.8

12.735

Phenyl benzoate

22.981

23.013

3.6

23.044

Conclusions:
The log Pow of MTMA is reported to be 1.3 at 23.3°C.
Executive summary:

The n-Octanol/Water partition coefficient (log Pow) of MTMA was determined according to OECD Guideline 117, adopted 13 April 2004, and EU Method A.8, 30 May 2008; HPLC method. The log Pow was 1.3 at 23.3°C.

Description of key information

The n-Octanol/Water partition coefficient (log Pow) of MTMA is 1.3 at 23.3°C (OECD Guideline 117/EU Method A.8; HPLC method).

Key value for chemical safety assessment

Log Kow (Log Pow):
1.3
at the temperature of:
23.3 °C

Additional information

Then-Octanol/Waterpartition coefficient (log Pow) of MTMA was determined according to OECD Guideline 117, adopted 13 April 2004, and EU Method A.8, 30 May 2008; HPLC method. The log Pow was 1.3 at 23.3°C.