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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

For both 6-(isononanoylamino)hexanoic acid, compound with 2,2’,2’’-nitrilotriethanol and 6-(isononanoylamino)hexanoic acid, reliable tests demonstrate ready biodegradability. The 10 day-window was fulfilled in the respective tests.

Additional tests on inherent biodegradability support these results. 6-(isononanoylamino)hexanoic acid, compound with 2,2’,2’’-nitrilotriethanol (97% within 11 days, RL1) and 6-(isononanoylamino)hexanoic acid (93% within 17 days; RL1) proved to be inherently biodegradable in Zahn-Wellens-tests (OECD 302 B).

A further study on the mode of actual degradation (IUCLID section 5.2.4) is available for 6-(isononanoylamino)hexanoic acid: transformation intermediates were analytically determined in a Zahn-Wellens-tests (OECD 302 B; RL2). The major metabolite determined after 7 days was isononanoic acid (approximately 60 mg/L), which was however fully metabolized after 14 days. The other expected metabolites were found only in low concentrations (at maximum 5 mg/L) after 7 as well as 14 days. Elimination due to adsorption was accounted for (determined however to be negligible).

6-(isononanoylamino)hexanoic acid, compound with 2,2’,2’’-nitrilotriethanol - and by read across also the very similar 6-(isononanoylamino)hexanoic acid - may be regarded as inherently biodegradable in the marine environment. This can be deduced from a test on aerobic biodegradability in seawater according to OECD 306 (reliability category 2).