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EC number: 500-092-7
CAS number: 36890-68-3
The substance is readily biodegradable (90% in 28 days) with acute
toxicity data available for three trophic levels. The
weighted average Log Pow value is 1.8 and indicative of a low potential
for bioaccumulation. The lowest acute toxicity value
from the three trophic levels relates to the algal study with EC50
(growth rate) values determined to be 33.14 and 6.29 mg/l for the two
components of the test substance. The test substance is not classified
for the environment based on acute toxicity data (> 1 mg/l threshold for
The laboratory reported <10% adverse effects on growth rate for the two
components with calculated geometric mean 72-hour EC10 values of 3.21
mg/l and 0.71 mg/l (4.6 mg/l nominal concentration). Both values are not
biologically relevant for adverse effects on algal growth with a mean
inhibition of growth at 4.7%. A mean reduced growth rate of only 6% was
seen at the next highest nominal concentration of 10 mg/l. Substance
stability in the test medium is low and the algal EC10 results for the
two components of the test substance are not considered to be adequate
for classification. The substance is rapidly biodegradable (meets the
10-day window) and not considered to pose a long-term hazard to aquatic
organisms. The acute toxicity data for the three trophic levels of
organism are relied upon for classification and the substance is not
classified for the environment.
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