Registration Dossier
Registration Dossier
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EC number: 218-301-2 | CAS number: 2110-78-3
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Biodegradation study, comparable to OECD 301C, degradation based on BOD and TC: readily biodegradable
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
The key study (KS_Modified MITI Test (I)_1994) was conducted according to the “Study on Degradation of Chemical Substances by Microorganisms, etc.” described in “Methods of Studies on New Chemical Substances” (Kanpogyo Notification No. 5, Yakuhatsu Notification No. 615, and 49 Kikyoku Notification No. 392 issued on July 13, 1974) and is comparable to OECD Guideline 301C. Activated sludge (non-adapted) was incubated with the test substance at a concentration of 100 mg/L for 28 days.
Findings described below were obtained regarding degradation based on BOD and TC analysis.
| Test solution | Degradation based on BOD (%) | Degradation based on TC (%) |
| No. 3 (sludge + test substance) system | 86 | 100 |
| No. 4 (sludge + test substance) system | 91 (mean: 88) | 100 (mean: 100) |
Degradation of the test substance determined based on BOD and TC indicated that it is a readily biodegradable substance.
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