Registration Dossier
Registration Dossier
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EC number: 943-366-5 | CAS number: -
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The target substance is unstable in water and decomposes immediately in contact with water to form adipic acid and acetic acid. All constituents of the target substance and the degradation products are considered to be inherently biodegradable. In conclusion, because the substance hydrolyses rapidly in nature and the hydrolysis products are biodegradable, the chemical safety assessment does not indicate the need for further investigations on biodegradability. The CSA purposes that the target substance is considered as readily biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
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 %).
The target substance is unstable in water and decomposes immediately in contact with water to form adipic acid and acetic acid. All constituents and degradation products are considered to be inherently biodegradable.
In conclusion, because the substance decomposes rapidly in nature and the constituents of the target substance and degradation products are biodegradable, the chemical safety assessment does not indicate the need for further investigations on biodegradability.
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