Registration Dossier
Registration Dossier
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EC number: 203-972-6 | CAS number: 112-44-7
Endpoint summary
Administrative data
Description of key information
Biodegradadation
n-Undecanal is readily biodegradable, but failing 10-day window (OECD 301B, 65% after 28 d).
Additional information
A valid study report on the ready biodegradation of n-undecanal is available (OECD 301B), supported by a further valid study (OECD 310). Because of the ready biodegradability of the test item, no simulation testing on biodegradation in water, sediment and soil was performed.
According to the conservative nature of the available key study performed according to OECD 301B (not accounting for volatilisation losses), n-undecanal is demonstrated to be (at least) readily biodegradable failing the 10-day window criterion (OXEA, 2010).
While failing the pass level of 60% because of an apparently relevant carbon fraction transformed into microbial biomass, study results of the available supporting study (NOACK, 2019) performed according to OECD 310 demonstrate the very rapid biodegradability of the test item and thus corroborate the results of the valid key study.
Overall, N-undecanal is considered to be readily biodegradable failing the10 -day window, based on the results obtained within the valid key study.
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