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In accordance with point, Column 2 (Specific rules for adaptation from Column 1), Annex VIII of Regulation (EC) No. 1907/2006, this study does not need to be conducted if the substance is readily biodegradable. The ready biodegradability of the read across substance (sodium 5-oxo-DL-prolinate) was determined to be 74.4% after 28 days in the submitted screening study at a concentration of 100 mg/L. As such the registered substance (sodium 5-oxo-L-prolinate) is also considered to degrade rapidly, as the difference in isomeric forms of the substance are unlikely to affect biodegradability. Testing for this endpoint has therefore been omitted.

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