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EC number: 429-320-2 | CAS number: 24748-23-0
The result of an OECD 301D tests indicate that 3,6,9-Triethyl-3,6,9-trimethyl-1,4,7-triperoxonane is not readily biodegradable.
An OECD 302B study did not show biodegradation either.
Two tests on ready biodegradability are available. An OECD 301B (CO2 evolution test) performed in 1997 (result: not biodegradable). The OECD 301D (O2 consumption) test. The test was extended to 140 days because the pass level of 60% was not reached in 28 days. At day 140 a degradation percentage of 65% was reached. It is concluded that although the substance is not readily biodegradable, this results demonstrates that the substance is not recalcitrant in nature. A biodegradation percentage > 60% indicates that the test substance is completely mineralised.
No biodegradation was found in the OECD 302B study. MEK was not formed in the tests with 3,6,9-Triethyl-3,6,9-trimethyl-1,4,7-triperoxonane
spiked to mineral salt medium or spiked to mineral salt medium with heat killed activated sludge. This demonstrates that in the Zahn Wellens test the peroxide bonds in this substance are not reduced by a chemical reaction. MEK was however also not measured for
in the presence of living activated sludge. The substance is therefore not removed by alkyl hydroperoxide reductases. The active site of alkyl hydroperoxid reductase most likely cannot accommodate ketone peroxides such as
Studies with a mixture of organic peroxide (CAS 1613243-54-1) with the registered substance as main constituent showed similar results. This mixture was not found readily biodegradable and neither inherently biodegradable.
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