Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

MTDID 44428 is inherently biodegradable but does not fulfill specific criteria.

Additional information

MTDID 44428 did not meet pass criteria for ready biodegradation nor specific criteria for inherent biodegradation. It is not toxic to biodegradation. In the inherent test, the test material could not be measured in inoculum blanks at the end of the test. The result was considered conservative, in that the substance may not have been entirely available to biodegradation throughout the test period. The expected degradation pathway is hydrolysis of the acrylate ester functionality followed by oxidation of the secondary alcohol to form a mixture of octyl ketones. This assumption leads to equivocal results. Acrylic acid is readily biodegradable. The registration dossier for octan-2-one contains contradictory results on ready biodegradability. Nonan-2-one is easily biodegraded (test conducted at <2% of solubility limit). The ultimate biological fate of MTDID 44428 is not entirely characterized.