Registration Dossier
Registration Dossier
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EC number: 202-589-1 | CAS number: 97-53-0
Dissociation constant
Administrative data
Link to relevant study record(s)
Description of key information
In accordance with section 1 of REACH Annex XI, the dissociation constant study (required in section 7.16) does not need to be conducted as inspection of the chemical structure shows no functional groups which are associated with dissociation behaviour at relevant environmental conditions.
The dissociation constant of eugenol was calculated to be 10.29 ± 0.18, suggesting that the substance will predominantly exist in the undissociated form throughout the environmentally relevant pH range of 5 to 9.
Key value for chemical safety assessment
Additional information
The dissociation constant of eugenol was calculated using the ACD/I-Lab service ACD/LogP v11.02, and was reported as 10.29 ± 0.18. The substance will therefore predominantly exist in the undissociated form throughout the environmentally relevant pH range of 5 to 9. The temperature, at which the partition coefficient value was obtained, was not reported.
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