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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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Physical & Chemical properties

Partition coefficient

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Administrative data

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partition coefficient
Type of information:
other: Expert statement
Adequacy of study:
weight of evidence
Study period:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
no guideline available
Principles of method if other than guideline:
Expert statement based on literature datea and calculations of the single contsituents.
GLP compliance:
Type of method:
calculation method (fragments)
Partition coefficient type:
Analytical method:
not specified
Key result
log Pow
Partition coefficient:
< -1
Remarks on result:
other: Temperature and pH are not available.
Taken together, the partition coefficient is seen to be below -1.0.
Executive summary:

The test substance ”Guanidinoacetic acid – Mother liquor“ was to be assessed for its partition coefficient. An experimental determination of the partition coefficient following the given methodology is not useful due to the test items composition and the limitation of the recommended method; therefore an estimation based on QSPR calculations and literature was done under consideration of the values given in the literature.

Taken together, the partition coefficient is seen to be below -1.0.

Description of key information

The Partition coefficient was estimated taking data from ECH, experimental literature data and QSAR-Calculations (Chemicalize and Epi-Suite) into account. 

Key value for chemical safety assessment

Log Kow (Log Pow):

Additional information