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EC number: 220-479-1
CAS number: 2781-00-2
From the read across with 1,3 (or 1,4)-bis[1-(tert-butylperoxy)-1-methylethyl]benzene: the substance was not found to be acutely toxic to Daphnia magna when dispersed in water at a nominal loading rate of 1.0 mg/L equivalent to an initial mean measured concentration of 0.0219 mg/L.Consequently, the 48-hour EC50 value could not be calculated but must be >1.0 mg/L (>0.0219 mg/L). The “no observed effect loading rate” was 1.0 mg/L (0.0219 mg/L as initial mean measured concentration).
There is no data on
1,4-bis[1-(tert-butylperoxy)-1-methylethyl]benzene. A read across
approach is proposed with 1,3 (or
The young daphnids were exposed to
nominal test concentrations of 1 mg/L under static conditions during 48
hours. The mean measured concentrations were not maintained between 80
and 120 % of nominal.
Mortality in control, temperatures, pH
range and dissolved oxygen concentration were reported and in agreement
with the guideline requirements.
The test substance was not found to be
acutely toxic to Daphnia magna at a nominal loading rate of 1.0 mg/L,
equivalent to an initial mean measured concentration of 0.0219 mg/L.
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