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Dissociation constant

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Description of key information

pKa values could not be determined using either the titration method or the spectrophotometric method, therefore, the results of the calculation method are reported.
The following pKa values in the logarithm range of 1 - 13 for acidic and basic groups in the molecular structure of the test substance were calculated using the Perrin calculation method:
 Acidic:  5-SUBST-TETRAZOL;  pKa 4.25
Basic: 1-SUBST-IMIDAZOLE; pKa 4.83

Key value for chemical safety assessment

pKa at 20°C:

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