Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 227-807-2 | CAS number: 5986-55-0
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 toxicity results for Daphnia and algae are available for the substance. The 48h-EC50 value to Daphnia magna was 5.5 mg/L based on mean measured concentrations in freshly prepared test solutions. The ErC50 for algae is 21 mg/L based on geometric mean measured test concentrations. Since the acute EC50 values are >1 mg/L, the substance does not need to be classified for acute toxicity according to EU CLP (Table 4.1.0; a).
The only available chronic value is the EC10 of algae being 13 mg/L. According to EU CLP Figure 4.1.1, the chronic classification has to be determined based on this chronic value according to Table 4.1.0, (b) ii (as the substance is readily biodegradable) and based on the available EC50 value for Daphnia and environmental fate data according to Table 4.1.0, (b) iii. The most stringent outcome should be leading:
- Based on the EC10 > 1 mg/L, the substance does not need to be classified for chronic toxicity according to Table 4.1.0, (b) (ii). The substance has, however, a log Kow ≥ 4, the substance needs to be classified for chronic toxicity in Category 2 based on the available EC50 value for Daphnia magna (as it is >1 but ≤10 mg/L). This is the most stringent outcome.
Overall, it can be concluded that the substance needs to be classified for environmental hazards as Chronic Cat. 2 (H411) according to EU CLP (EC 1272/2008 and its amendments).
GHS
As the EC50 value for Daphnia magna is >1 but ≤10 mg/L, the substance needs to be classified as Acute Cat. 2 (H401) and Chronic Cat. 2 (H411) according to GHS.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
