Registration Dossier
Registration Dossier
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Reaction mass of (1RS,2RS,7SR,8RS,9E)-9-Ethylidene-3-oxatricyclo [6.2.1.0(2,7)] undecane and (1RS,2RS,7SR,8RS,9Z)-9-Ethylidene-3-oxatricyclo [6.2.1.0(2,7)] undecane and (1RS,2SR,7SR,8SR,10E)-10-Ethylidene-3-oxatricyclo[6.2.1.0(2,7)] undecane and (1RS,2SR,7SR,8SR,10Z)-10-Ethylidene-3-oxatricyclo [6.2.1.0(2,7)] undecane
EC number: 941-194-5 | CAS number: -
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Biodegradation: 0% (28-d) not readily biodegradable, OECD301B, Demares-Koopmans 2013
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
The ready biodegradability test was carried out according to OECD 301B Ready Biodegradability: CO2 Evolution (Modified Sturm Test) guidelines. The substance, at a concentration of 12 mg TOC/l, was exposed to activated domestic sewage sludge micro-organisms with mineral medium in sealed culture vessels at between 22.0 and 23.1°C for 28 days. The degradation of the test substance was assessed by the determination of carbon dioxide produced. Control solutions with inoculum and the reference substance, sodium acetate, together with a toxicity control were used for validation purposes. The substance attained 0% degradation after 28 days and therefore cannot be considered to be readily biodegradable.
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