Registration Dossier
Registration Dossier
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EC number: 291-103-1 | CAS number: 90341-71-2
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
The EC0 of the test substance after was >= 100 mg/L nominally and >= 70 mg/L in the mean of the analytical determined values.
The analytical content of < 80% of the nominal value is due to the fact that the test substance hydrolyses easily from the ester and vinyl structure to the alcohol of the dyestuff.
Due to the fact that the EC0 is >= 70 mg/L without any adverse effects on the daphnids, it can be concluded that the EC50 of the test substance is >100 mg/L.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 100 mg/L
Additional information
A study to evaluate the potential toxicity of the test substance to daphnids was conducted with a structural analogue according to EU test guidance 67/548/EEC part C2 in compliance with GLP.
The EC0 of the test substance after was >= 100 mg/L nominally and >= 70 mg/L in the mean of the analytical determined values.
The analytical content of < 80% of the nominal value is due to the fact that the test substance hydrolyses easily from the ester and vinyl structure to the alcohol of the dyestuff.
Due to the fact that the EC0 is >= 70 mg/L without any adverse effects on the daphnids, it can be concluded that the EC50 of the test substance is >100 mg/L.
The substance is not considered to pose a hazard to Daphnia.
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