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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 431-060-1 | CAS number: 153719-38-1
Long-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Chronic toxicity to Daphnia magna was determined according to the OECD guideline 211 for the test substance CA 2343A. The study was conducted according to GLP guidelines. Reproduction rate and length of parent animals was determined in a test duration of 21 days.
Validity test criteria were fulfilled as no parent animals died in the dilution water control and mx. 2 of 10 parents died in test concentrations. Guideline OECD 211 allows mortality of 20 % of the parent animals in the controls at the end of the test without affecting the validity of the test. The mortalities ovserved in the test were within this limit.
Results based on nominal concentrations of CA 2343 A: The no observed effect CA 2343 A concentration (NOEC) for reproduction was 120 mg/l and the EC50 for reproduction was > 120 mg/L. The no observed effect CA 2343 A concentration (NOEC) for length was 56 mg/l, the lowest observed effect concentration (LOEC) was 120 mg/l. The overall no observed effect
CA 2343 A concentration was 56 mg/l and the overall lowest observed effect concentration was 120 mg/l.
Key value for chemical safety assessment
Additional information
Guideline Test Type |
Species |
Results |
Reference |
Reliability |
OECD 211 |
Daphnia magna |
NOEC for reproduction = 120 mg/l, EC50for reproduction > 120 mg/l; NOEC for length = 56 mg/l, LOEC = 120 mg/l |
Daniel, M., Syngenta, 2001 |
Reliable without restrictions |
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.
