Registration Dossier
Registration Dossier
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EC number: 247-569-3 | CAS number: 26266-58-0
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Readily biodegradable: 88.9% (CO2 evolution) in 28 days
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
Two studies are available on the biodegradability of Anhydro-D-glucitol trioleate (CAS No. 26266-58-0). The ready biodegradation study according to OECD 301 B was used as key study, and the assessment is supported by a marine biodegradation study according to OECD 306.
The key study carried out with Anhydro-D-glucitol trioleate (CAS No. 26266-58-0) was performed following the OECD Guideline 301 B (van Dievoet, 2006). The inoculum was obtained from a domestic sewage treatment plant. During the 28-day test period, biodegradation reached 88.9%, based on CO2 evolution, and the 10-day window criterion was fulfilled.
The supporting study carried out with Anhydro-D-glucitol trioleate (CAS No. 26266-58-0) was performed following the OECD Guideline 306 (Andersen, 2001). Natural seawater was used as inoculum. During the 28-day test period, biodegradation reached 81%, based on O2 consumption.Biodegradation in seawater is expected to be slower than that in tests with freshwater and activated sludge as inoculum. According to the “Guidance on information requirements and chemical safety assessment / Chapter R.7b: Endpoint specific guidance” (ECHA, 2012) a removal of > 60% after 28 d in a study according to OECD 306 can be used as evidence that the substance is expected to fulfill the requirements for ready biodegradability.
Thus, based on theabove mentioned results, and due to the structural and profile similarities of the substances, it can be concluded that Anhydro-D-glucitol trioleate (CAS No. 26266-58-0) can be considered as readily biodegradable according to OECD criteria.
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