# Commission Regulation (EU) No 544/2011 of 10 June 2011 implementing Regulation (EC) No 1107/2009 of the European Parliament and of the Council as regards the data requirements for active substances (Text with EEA relevance) (repealed), Division 2.8: Partition coefficient n-octanol/water including effect of pH (4 to 10)

Extent: E+W+S+N.I.

The n-octanol/water partition coefficient of purified active substance must be determined and reported in accordance with method A 8 of Regulation (EC) No 440/2008. The effect of pH (4 to 10) must be investigated when the substance is acidic or basic as defined by its pKa value (< 12 for acids, > 2 for bases).

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Source: https://www.legislation.gov.uk/eur/2011/544/annex/part/A/division/2/division/2.8 (the official version)
Page: https://openlegislation.uk/eu-regulation-2011-544/annex/part-A/division-2/division-2.8
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.