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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 689-732-5 | CAS number: 956317-36-5
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
The 48-hour EC50 value was determined by empirical estimation to be >97 mg a.i./L. Additional testing to further define the EC50 value was not conducted as this would exceed OECD guideline (100mg/L). The No-Observed-Effect Concentration (NOEC) was determined to be 97 mg/L. The highest concentration producing 0% immobilization was 97 mg/L. The lowest concentration producing 100% immobilization was > 97 mg/L.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 97 mg/L
Additional information
In a GLP compliant guideline, the effect of the test substance on Daphnia magna was determined. As no concentration tested resulted in a ≥50% immobilization, the 48-hour EC50 value was empirically estimated to be > 97 mg/L, the highest mean measured concentration tested. Additional testing to further define the EC50 value was not conducted since the highest nominal treatment level tested (100 mg/L) is the highest concentration required by the OECD guideline.
The No-Observed-Effect Concentration (NOEC) was determined to be 97 mg/L. The limits of test substance concentration producing 0% and 100% immobilisation are indicated. The highest concentration producing 0% immobilization was 97 mg/L. The lowest concentration producing 100% immobilization was > 97 mg/L.
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.
