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Physical & Chemical properties

Dissociation constant

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Description of key information

The pKa for Allantoin is 8.96 at 25° C.

Key value for chemical safety assessment

pKa at 20°C:
8.96

Additional information

For the assessment of the dissociation constant of Allantoin, published data were used (CRC Handbook of Chemistry and Physics, 89th edition, 2008-2009). In the Handbook, the pKa for Allantoin is reported to be 8.96 at 25° C.