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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Additional information

In accordance with column 2 of REACH Annex VII the study is not needed as the target substance is unstable in water and decomposes immediately in contact with water to form adipic acid and acetic acid. The target substance is an UVCB substance consisting of adipic acid, di-anhydride with bis(acetic acid) (ca. 57 %), Acetic acid (ca.32.5 %), acetic anhydride (ca. 7.1 %), adipic anhydride (ca. 1.5 %) and oligomeric adipic anhydrides (ca. 1.0 %).

All constituents of the target substance and the degradation products are considered to be readily biodegradable in water and soil.

In conclusion, because the substance hydrolyses rapidly in nature and theconstituents of the target substance and the degradation products are biodegradable, the chemical safety assessment does not indicate the need for further investigations on biodegradability.