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EC number: 239-701-3
CAS number: 15625-89-5
The test substance was readily biodegradable in two reliable studies
(Key Study: BMG, 2010).
In the reliable key study (BMG, 2010), the biodegradability of the test
substance exposed to microorganisms derived from the activated sludge of
a municipal sewage treatment plant was investigated under aerobic static
The biodegradability - based on CO2evolution - of the test
substance was calculated to be 86% of the theoretical value (ThCO2)
after an incubation time of 28 days. The biodegradation of the test
substance reached 66% at the end of the 10-d window.
Significant biodegradation of the test substance was observed after a
lag phase of about 7 days.
The positive control, sodium benzoate, reached 100% biodegradation after
14 days, thus confirming suitability of inoculum and test conditions.
The test substance reached the pass level of 60% for ready
biodegradability in the CO2Evolution Test (OECD 301B) within
the 10-d window and, therefore, can be termed as readily biodegradable.
This result is supported by another reliable study (Mr. Schwarz, 2004).
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