Registration Dossier
Registration Dossier
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Reaction mass of copper complex of [(2,6-difluoroheterocycl-4-yl)amino]hydroxy{[2-hydroxy-3-sulfonato-5-(vinylsulfonyl)phenyl]diazenyl}naphthalene sulfonic acid, dialkali salt and copper complex of [(2,6-difluoroheterocycl-4-yl)amino]-hydroxy{[2-hydroxy-3-sulfonato-5-{[2-(sulfonatooxy)ethyl]sulfonyl}phenyl]diazenyl}naphthalene sulfonic acid, trialkali salt
EC number: 479-550-2 | CAS number: -
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Acute toxicity of the test substance to Daphnia magna was assessed accordance with EU method C.2 and OECD guideline 202, in compliance with GLP. The EC0 value at time intervals from 24-48 hours was > 100 mg/L. An EC50 could not be determined due to complete absence of adverse effects.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 100 mg/L
Additional information
Acute toxicity of the test substance to Daphnia magna STRAUS was assessed under static conditions. The study was conducted in accordance with EU method C.2 and OECD guideline 202, in compliance with GLP.
The Daphnia were exposed to a limit test concentration of 100 mg/L (nominal) of test substance dissolved in water. Analytical measurements confirmed that the test concentration was maintained within ± 20 % of nominal and initial. Observations were made on the mobility behaviour and loss of locomotory actions after 24 and 48 hours of exposure. The EC0 value at time intervals from 24 to 48 hours was > 100 mg/L. The hardness of the test medium was 269.5 mg CaCO3/L.
The test results are expressed in terms of nominal concentrations. Measured concentrations correspond to 100 % of nominal values at 0 hours and to 99 % of nominal values at 48 hours, respectively. The 24 hours and 48 hours EC0 values of the test substance were derived to be > 100 mg/L. EC50 values were not determined due to complete absence of adverse effects.
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