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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 421-450-8 | CAS number: 154702-15-5
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
At the saturated solution with a nominal loading of 100 mg/L of the test item, no effects were observed on Daphnia magna. A geometric mean measured concentration of 2.05 ug/L of the test item was determined for the saturated solution.
Key value for chemical safety assessment
Additional information
In the acute immobilisation test with Daphnia magnathe effects of the saturated solution with a nominal loading of 100 mg/L of the test item VIVTROZE-H were determined according to OECD 202. The limit test was conductedunder semi-static conditions over a period of 48 hours.The test item is an off-white crystalline powder and is sparingly soluble in water. Therefore, a saturated solution was prepared by stirring with approximately 1100 rpm for 24 h at room temperature. After the completion of stirring, the test item dispersion was filtered with a membrane filter (0.45 µm)to achieve the saturated solution. The saturated solution was clear throughout the exposure period. Twenty daphnids were exposed to the saturated solution and the control. The saturated solution and the control were analytically verified via LC/MS-MS at the start (0 and 24 h) and at the end of both exposure intervals (24 and 48 h). The measured concentrations of the test item at the start of the exposure intervals (0 and 24 h) were 2.47 and 2.02 µg/L. The measured concentrations of the test item at the end of the exposure intervals (24 and 48 h) were 2.10 and 1.69 µg/L. The geometric mean measured concentration was calculated to be 2.05 µg/L. All effect levels are given based on the geometric mean measured concentration of the test item. Water quality parameters (i.e. pH-value and dissolved oxygen concentration), measured at the start (0 and 24 h) and at the end of the exposure intervals (24 and 48 h), were within the acceptable limits. The validity criteria of the test guideline were fulfilled. At the saturated solution with a nominal loading of 100 mg/L of the test item, no effects were observed on Daphnia magna. A geometric mean measured concentration of 2.05 ug/L of the test item was determined for the saturated solution.
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.
