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Dissociation constant

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Description of key information

Acidic group (AR)NHCOR: pKa = 12.9
Basic groups 1,2,4-TRAZOLE: pKa = 1.4; (AR)NHCOR: pKa = - 3.6 (Perrin's calculation method)

Key value for chemical safety assessment

Additional information

In accordance with Regulation (EC) No 1907/2006, Annex XI, Section 1, this study not scientifically relevant: due to the chemical structure, no dissociation is to be expected under naturally relevant pH conditions.

Therefore the dissociation constant of 2-hexyldecanoic acid [4-(6-tert-butyl-7-chloro-1H-pyrazolo[1,5-b][1,2,4]triazol-2-yl)phenylcarbamoyl]methylester (UM-235) were calculated by using Perrin's calculation method.