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Physical & Chemical properties

Partition coefficient

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Description of key information

The partition coefficient (Pow) of the substance was measured as 0.02 at 23 °C and a logarithmic partition coefficient (log Pow) of -1.7 was calculated.

Key value for chemical safety assessment

Log Kow (Log Pow):
-1.7
at the temperature of:
23 °C

Additional information

Review and comment

As the test substance is amphoteric (amino and carboxylic groups), it is not possible to generate nonionic form according to EG guideline 92/69 A.8. The pH 12 was chosen, because at this pH both amino functions are nonionic, the carboxylic acid function is definitely deprotonated, but probably compensated by sodium ions