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Partition coefficient

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Description of key information

Log Kow: 6.47 at 20 - 25°C (OECD 117)

Key value for chemical safety assessment

Log Kow (Log Pow):
6.47

Additional information

A measured log Kow of 6.47 at 20 - 25°C was determined for the substance using OECD 117 test guideline. Although full details are not available, the result is considered to be reliable.

2,4,6,8,10-pentamethyl-2,4,6,8,10-pentavinylcyclopentasiloxane Vi5-D5 (CAS No: 17704-22-2; impurity 1) and 2,4,6-trimethyl-2,4,6-trivinylcyclotrisiloxane Vi3-D3 (CAS no: 3901-77-7; impurity 2) may be present as impurities. Predicted log Kowvalues of 9.0 and 6.7 at 20°C were determined for Vi5-D5 and Vi3-D3, respectively, using a validated QSAR estimation method.