Registration Dossier
Registration Dossier
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EC number: 432-520-2 | CAS number: 232938-43-1
Biodegradation in soil
Administrative data
Link to relevant study record(s)
- Endpoint:
- biodegradation in soil: simulation testing
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- other:
- Justification for type of information:
- A biodegradation simulation study in water in accordance with OECD 309 has been performed. As the results of this study show that the substance is persistent in surface water, no further information is needed for the other compartments for persistence assessment (REACH Guidance R.11 section R.11.4.1.1.1).
- Reason / purpose for cross-reference:
- reference to other study
- Transformation products:
- no
Reference
Description of key information
The results of the aerobic mineralisation study of radiolabeled Pergafast 201 at 12 ºC in surface water show that the DT50 values are between 212 days (low test concentration) and 306 days (high test concentration).
As these values indicate that the substance is Persistent in water, no further studies are required for the other compartments.
Key value for chemical safety assessment
Additional information
In a study according to OECD 307 the amount of the parent compound in soil decreased down to a value of 14 % of the initial amount in 30 days. An appendant half-life for the parent compound in soil of 4.9 days was determined (IES 2010). However, the study was disregarded due to major methodological deficiencies.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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