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EC number: 943-024-5
CAS number: -
The key study relates to an OECD Guideline study with the test substance sodium cumenesulphonate and reported a 3hr EC10 of >=1000 mg/L (Fiebig, 2009).
The key study is a respiration inhibition test carried out using
activated sludge and the test substance sodium cumenesulphonate in
accordance with OECD Guideline No. 209. The test was performed under
static conditions with the limit concentration 1000 mg a.i./L,
corresponding to 2500 mg test item/L. The respiration rates of the
control, reference and test substance replicates were measured after a
contact time of three hours and the inhibitory effects of the test and
reference item were determined in comparison to the control respiration
rates. No inhibition was observed for the test substance corresponding
to an EC10 of >= 1000 mg a.i./L.
The supporting study (Fiebig, 2009) was undertaken at the same time by
the same laboratory using the same protocol, but using the test
substance sodium toluenesulphonate. The 3-hour EC10 (and NOEC) was
>=1000 mg/L active substance (nominal); the only concentration tested.
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