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Partition coefficient

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Description of key information

Due to its composition, the partition coefficient n-octanol / water

(Pow) of the test item can only be estimated from the single

solubilities in n-octanol and in water.

As the test item shows complete miscibility with n-octanol and

with water at T = 23 °C and at T = 20.0 °C ± 0.5 °C, the estimation

of the Pow from the solubilities of the test item in water and

in n-octanol is also not possible.

An EPI Suite calculation for N1,N3-bis(3-aminopropyl)-2-methyl-cyclohexane-1,3-diamine and N1,N3-bis(3-aminopropyl)-4-methyl-cyclohexane-1,3-diamine results in a log Kow of 0.46 at 25 °C for both molecules.

Key value for chemical safety assessment

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