Registration Dossier
Registration Dossier
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EC number: 201-431-9 | CAS number: 82-58-6
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The test item was investigated for its ready biodegradability in Carbon dioxide (CO2) evolution test (modified Sturm test) in compliance with the OECD 301B.
The relative biodegradation values calculated from the measurements performed during the test period revealed 68% and 70% biodegradation of test item, for A and B, respectively (based on ThCO2).
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
The ready biodegradability of test item was evaluated in an aerobic aqueous medium with microbial activity introduced by inoculation with activated sludge; Carbon dioxide (CO2) evolution test (modified Sturm test) in compliance with the OECD 301B.
The relative biodegradation values calculated from the measurements performed during the test period revealed 68% and 70% biodegradation of test item, for A and B, respectively (based on ThCO2).
Furthermore, average biodegradation of test item in bottle A and B reached ≥ 60% within a 10-day window.
In the toxicity control, test item was found not to inhibit microbial activity. Since all criteria for acceptability of the test were met, this study was considered to be valid.
In conclusion, test item was designated as readily biodegradable.
[Type of water: freshwater]
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