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EC number: 200-893-9
CAS number: 75-71-8
EC50, 72 hrs: 67.216 mg/l. On the basis of this, it is proposed that the
substance could potentially be hazardous to Algae
results of this give a 96-hr LC50 of 32.56 mg/l or 56.1 mg/l.
QSAR predictions indicate that the substance could potentially be
hazardous to Algae.
Algal toxicity from validated QSARs
ECOSAR model v2.0: EC50 (96h) = 56.4 mg/l
(with estimated LogKow) or 32.56 mg/l (with experimental LogKow)
Predictor model: EC50 (72h) = 67.2 mg/l
Toolbox : ErC50 (72h) : 71.3 mg/l
In the absence of experimental data and
considering this regulated substance has no direct emissions to the
aquatic compartments, assessments of Algal toxicity were conducted using
validated QSARs developed for short-term toxicity prediction in green
determinations were consistent and support an EC50 between 10 and 100
mg/L, indicating the substance is potentially harmful to green algae.
lowest predicted value of 32.56 mg/l is retained for input in the
chemical safety assessment.
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