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EC number: 477-080-2
CAS number: 103121-85-3
- Temperatures recorded were 22.7 ± 0.4 °C.
- No major deviations of the pH were seen during the study.
Validity of the test: The test is considered valid if the
difference of extremes of replicate values of the removal of the test
substance at the plateau, at the end of the test or at the 10-d window,
as appropriate, is less than 20 % and if the percentage degradation of
the reference compound has reached the pass levels by day 14.
These criteria were fulfilled.
The biodegradability of MPI-ACA was determined by measurement of
dissolved organic carbon at frequent intervals over a 28 d period. The
method used was that described in Part C.4-B of the EC Commission
Directive 92/69/EEC and in the OECD Guideline 301 E.
• The reference substance sodium benzoate was degraded by 96.0%
within 14 days.
• Degradation in the toxicity control, which contained sodium
benzoate and the test substance, was not indicative of an inhibition of
the microbial activity by the test substance.
• The biodegradation of MPI-ACA was 24 % within 28 days. MPI-ACA
is therefore not regarded as readily biodegradable.
The biodegradation is 24 % within 28 days.
Inherent biodegradable according to the definition of the OECD. Inherent
biodegradable: A classification of chemicals for which there is
unequivocal evidence of biodegradation (primary or ultimate) in any test
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