Registration Dossier
Registration Dossier
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EC number: 228-536-2 | CAS number: 6290-17-1
Endpoint summary
Administrative data
Description of key information
Biotic degradation
The biodegradation potential of the substance was examined in a study according to OECD TG 301D (Closed Bottle test) and in compliance with GLP criteria (Dr. Noack, 2017).
Test item at a concentration of 4 mg/L (ca. 7.36 mg/L based on ThOD) was inoculated for 28 days under aerobic conditions with inoculum of the aqueous phase of non-adapted activated sludge derived from a municipal sewage treatment plant. In addition, an inoculum control, a reference control (5 mg/L sodium acetate) and a toxicity control (with 2 mg/L test substance and 5 mg/L reference substance) were run in parallel.Two duplicate bottles of all series were withdrawn for analyses of the dissolved oxygen concentration at day 0 and after 7, 14, 21, and 28 exposure. Cumulative percentages biodegradation were calculated from the oxygen depletion ratio BOD/ThOD. All validity criteria were met.
After the 28-day incubation period the substance was biodegraded 10%. Based on these findings the substance is classified as not readily biodegradable.
Additional information
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