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Environmental fate & pathways

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No experimental data evaluating the biodegradation potential of isooctadecanoic acid, mono- and diester with glycerol (CAS No. 97358-80-0) are available. Therefore, data from a structurally related category member are used as read-across in accordance with Regulation (EC) No. 1907/2006, Annex XI, 1.5. In a biodegradation screening study performed with the read-across substance castor oil hydrogenated (CAS No. 8001-78-3), 64% biodegradation after 28 days was observed. Based on this result, isooctadecanoic acid, mono- and diester with glycerol is expected to be readily biodegradable as well and therefore, rapidly biodegraded in both aquatic and terrestrial environments. Thus, in accordance with Regulation (EC) No. 1907/2006, Annex IX, Column 2, 9.2.1.2, 9.2.1.3 and 9.2.1.4, further testing on biodegradation of the substance in water, sediment and soil are not required.