Registration Dossier
Registration Dossier
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EC number: 233-117-2 | CAS number: 10039-33-5
Endpoint summary
Administrative data
Description of key information
Non readily biodegradable
BCF: 323.5l/kg wet-wt (BCF regression-based method).
Koc: 4.065E+007 l/kg; LogKoc: 7.6090
Additional information
The environmental fate of the substance was evaluated by taking into consideration experimental data on Similar Substance 01 and calculated values on the substance. Justification for Read Across is given in Section 13 of IUCLID.
A study on Similar Substance 01, conducted according to the OECD Guideline 301 F, suggests that the substance is not expected to be readily biodegradable. The analogue substance degraded only 2 % within 28 days of incubation with activated sludge. Two of the flasks performed with the test material gave negligible oxygen consumption, whilst the third gave 8 % within 28 days. The test is considered as valid since all controls performed as part of the test demonstrated that the test system was operating correctly and the test material exhibited no toxic effect on the inoculum.
The substance is highly insoluble in water and thus hydrolysis test is technically not feasible. Due to the presence of ester groups, the substance could be hydrolysed (supported by the QSAR Toolbox v.4 hydrolysis simulator predictions) however the negligible solubility in water suggests a low hydrolytic potential. Furthermore, by considering the estimated Koc it is expected to adsorb into sediment. Calculated values of BCF suggest that the substance does not have the potential to bioconcentrate (BCF < 500 l/kg). The non-biodegradation and the low hydrolytic potential of the substance indicate that it is present in the aquatic environment as is, with possible effects on aquatic organisms.
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