Registration Dossier
Registration Dossier
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EC number: 271-347-5 | CAS number: 68541-50-4
Phototransformation in air
Administrative data
Link to relevant study record(s)
Description of key information
Phototransformation in air is not relevant due to low vapour pressure (< 0.0001 Pa).
Key value for chemical safety assessment
Additional information
Experimental results on phototransformation of 2-ethyl-2-(((1-oxoisooctadecyl)oxy)methyl)-1,3-propanediyl bis (isooctadecanoate) (CAS 68541-50-4) are not available. Separate calculations for the substance components using AOPWIN v1.92 indicate that the substance will be rapidly photodegraded by reaction with hydroxyl radicals (24 h day; OH-concentration: 0.5E+06 OH/cm³; Kuckuck C, 2012). Based on a 24 hour day the half-live estimated for the component TMP triester of 15-methylheptadecanoic acid was 5.35 hours. For the component TMP triester of 16-methylheptadecanoic acid the half-live was estimated to be 5.41 hours. However, due to the low vapour pressure (< 0.0001 Pa, SPARC v 4.6 calculation) dispersal of the substance to the atmosphere is unlikely. As this study is not a standard information requirement in REACh and there is no indication from the Chemical Safety Assessment (CSA) on the need to investigate further the fate and behaviour of the substance (Annex X requirement), no further testing is considered necessary for the substance.
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