Registration Dossier
Registration Dossier
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EC number: 231-885-3 | CAS number: 7775-00-0
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Hazard for air
Hazard for terrestrial organisms
Hazard for predators
Additional information
Conclusion on classification
Short-term aquatic toxicity data are available for three trophic levels (fish, invertebrates and algae). The acute effect values for fish (Oncorhynchus mykiss), daphnids and algae (Daphnia magna and Pseudokirchneriella subcapitata) are 3.9 mg/L, 0.43 mg/L and 11 mg/L, respectively. Based on the lowest value found for Daphnia (0.43 mg/l) the substance needs to be classified as Aquatic Acute 1 (H400) according to EU CLP (EC1272/2008) and its updates.
Long-term aquatic toxicity data are available only for aquatic algae for which an ErC10 of 4.8 mg/L is available. Based on this chronic data and the substance' readily biodegradability, the substance does not need to be classified for chronic hazard. As only one reliable long-term toxicity endpoint is available, chronic classification needs to be based on both chronic and acute data of which the most stringent outcome is used for the final classification. However, since Cyclemax is readily biodegradable and has a log Kow of 3.5 (no experimental BCF available), the substance does not need to be classified for chronic toxicity based on acute data. Therefore, the substance is not classified for chronic hazard as in accordance with EU CLP (EC1272/2008) and its updates.
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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