Registration Dossier
Registration Dossier
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EC number: 700-694-1 | CAS number: 1207339-61-4
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The substance is not readily biodegradable with 7 % degradation observed in 28 days and also not inherently biodegradable with only 8 % degradation in 28 days.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
Assessing the ready biodegradability of the substance a study was conducted in accordance with the EU Method C.4-D (Determination of the "Ready" Biodegradability - Manometric Respirometry Test) which is in all essential parts identical with OECD Guideline 301 F. A solution of the test substance in a mineral medium was inoculated and incubated for 28 d under aerobic conditions. During this period, degradation was followed by BOD determinations. The test substance showed 7 % biodegradation after 28 days.
The inherent biodegradability was determined according to the OECD Guideline 302 C (Inherent Biodegradability: Modified MITI Test (II)) and results in 8 % degradation within 28 days.
In the studies all validity criteria of the test methods (readily and inherently) were met. The per cent degradation of the reference compound sodium benzoate reached the level of >= 40 % after 7 days and >= 65 % after 14 days.
Based on these results, the substance is considered to neither "Readily Biodegradable" nor "Inherently Biodegradable".
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