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EC number: 200-521-5
CAS number: 61-82-5
Key study, OECD 301F, GLP:
0% biodegradation after 28 days.
Not readily biodegradable.
In a ready biodegradation study performed
according to OECD Guideline 301 F and GLP, the test item was tested at a
loading rate of 103 mg/L, corresponding to an oxygen demand of about 286
mg/L (ThODNO3), and the inoculum was aerobic activated sewage sludge,
domestic. The degradation of the test material was assessed by the
determination of the oxygen consumption. The test treatments, inoculum
blank, procedure control and toxicity control were measured in
The mean biodegradation of the test item
after 28 days was 0% (ThODNO3). Therefore the 10 day window criterion
was not passed. The reference item sodium benzoate was sufficiently
degraded to 85% after 14 days and to 85% after 28 days of incubation,
thus confirming the suitability of the aerobic activated sludge inoculum
used. In the toxicity control containing both, the test item and the
reference item sodium benzoate, 27% biodegradation was noted within 14
days and 28% biodegradation after 28 days of incubation. Thus, the test
item can be assumed to be not inhibitory to the aerobic activated sludge
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