Registration Dossier
Registration Dossier
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EC number: 700-989-5 | CAS number: -
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
DIUP is readily biodegradable (71% biodegradation in 28 days) and meets the 10-day window, based on results from a standard OECD ready biodegradation test guidlines.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
DIUP has been shown to biodegrade to a high extent in tests of ready and inherent biodegradability using standard OECD test guidelines. DIUP biodegraded 70.9% in 28 days and was readily biodegradable and met the 10-day window. Based on the high extent of biodegradability measured using various standard test procedures, DIUP and its degradation products are expected to biodegrade to a high extent under simulated conditions (i.e., wastewater treatment) and in sediment and soil. Additional data for a mono ester indicate that the metabolites of DIUP would also be biodegraded. A mono-n-octyl/n-decyl-phthalate (MC8/10PE) was shown to biodegrade to approximately 90% after 28 days and the results met the ready biodegradable criteria. The mono ester of DIUP would be mono-undecyl-phthalate and is expected to exhibit an equally high extent and rapid rate of biodegradation as was demonstrated by MC8/10PE.
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