Registration Dossier
Registration Dossier
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EC number: 247-569-3 | CAS number: 26266-58-0
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
log Koc > 5 (KOCWIN v2.00)
Key value for chemical safety assessment
Additional information
No studies investigating the adsorption/desorption behaviour of Anhydro-D-glucitol trioleate (CAS No. 26266-58-0) are available. Using KOCWIN Program (v2.00), log Koc values of 13.2 and 12.8 were calculated based on molecular connectivity index (MCI) and log Kow, respectively (Blum, 2012). These models have no universally accepted definition of model domain, but since Anhydro-D-glucitol trioleate is outside the Kow range of the training set for both models, the results should be taken with caution. The definite values may not be fully reliable, but indicate a high adsorption potential, which is also to be expected based on the high Kow (>10) and low water solubility. Additionally, the results for the corresponding monoester Sorbitan oleate (CAS No. 1338-43-8), which is within the model domain, already indicate high adsorption (log Koc 3.4, based on MCI). It can be assumed that the triester has even higher adsorption potential, since it contains more fatty acid chains. However, the definite values for Sorbitan esters should still be taken with caution, since the molecular structure indicates a potential of surface active properties, which may further increase the adsorption potential of the substances.
It can be concluded that although the definite values are not fully reliable, the adsorption potential of Anhydro-D-glucitol trioleate to soil is expected to be high.
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