Registration Dossier
Registration Dossier
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EC number: 205-117-2 | CAS number: 133-66-4
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
The substance with CAS 133-66-4 is with high probability acutely not harmful to daphnids.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 100 mg/L
Additional information
The acute toxicity study with Daphnia magna on a close structural analogue (CAS 16090-92-1).point to the fact that the tested substance is not acutely harmful to aquatic invertebrates (Laus 2002, RCC 1988). The chosen key study contains an EC50 value greater than 100 mg/L.
Therefore also the substance with CAS 133-66-4 is considered with high probability acutely not harmful to daphnids.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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