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Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

No test data to address the ready biodegradability of the target substance is available. Therefore, information for two source substances, 2-aminoethanol (ethanolamine; CAS No. 141-43-5) and propionic acid (CAS No. 79-09-4), are presented to address this endpoint. The basis for this read-across approach is that the inoculum is expected to rapidly transform the target substance into the two source substances. 


The ready biodegradability of propionic acid was studied in a Warburg Respirometer test. The test substance was degraded to 74% after 30 days. The substance propionic acid was shown to be readily biodegradable under the conditions of the test.


The ready biodegradability of 2-aminoethanol was studied in a Sturm test equivalent to OECD 301B. The test substance was degraded to 91.8 % after 28 days. The substance 2-aminoethanol was shown to be readily and ultimately biodegradable under the conditions of the test. Review of the data presented in the graphical representation of the % degradation over time confirms the sample degraded reaching approximate 10% degradation around day 2 and >80% around day 12. Therefore, the sample met the 10 -day window criteria.


Since both ethanolamine and propionic acid have been shown to be readily biodegradable, the target substance can confidently be predicted also to be readily biodegradable.

Additional information