Registration Dossier
Registration Dossier
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EC number: 435-360-1 | CAS number: 144447-11-0
Endpoint summary
Administrative data
Description of key information
Additional information
Benzoic acid, 4-[4-(2-oxiranyl)butoxy]-, 4-methoxyphenyl ester did not induce acute immobilisation of Daphnia magna at a geometric mean concentration of 0.30 mg/l, i.e. an initially prepared loading rate of 100 mg/l after 48 hours of exposure (NOEC).
The 48h-EC50 was beyond the range tested, i.e. exceeded a geometric mean exposure concentration of 0.30 mg/l (an initially prepared loading rate of 100 mg/l).
Benzoic acid, 4-[4-(2-oxiranyl)butoxy]-, 4-methoxyphenyl ester reduced growth rate and inhibited the yield of this fresh water algae species significantly at a TWA concentration of 0.091 mg/l, i.e. an initially prepared loading rate of 100 mg/l.
The EC50 for growth rate reduction (ERC50: 0-72h) was beyond the range tested, i.e. exceeded a TWA concentration of 0.091 mg/l (initially prepared at a loading rate of 100 mg/l).
The EC50 for yield inhibition (EYC50: 0-72h) was 0.09 mg/l with a 95 % confidence interval ranging from 0.02 to 0.32 mg/l based on TWA concentrations.
The EC10 for growth reduction (ERC10: 0-72h) was 0.05 mg/l with a 95% confidence interval ranging from 0.02 to 0.14 mg/l based on TWA concentrations.
The EC10 for yield inhibition (EYC10: 0-72h) was 0.02 mg/l with a 95% confidence interval ranging from 0.01 to 0.07 mg/l based on TWA concentrations.
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