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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 264-202-2 | CAS number: 63451-47-8
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
The substance exhibits a NOEC for microorganisms of 32 mg/L.
Key value for chemical safety assessment
- EC10 or NOEC for microorganisms:
- 32 mg/L
Additional information
One reliable toxicity study to microorganisms is available. The toxicity to microrganisms was studied by following to OECD TG No. 209 and in compliance with GLP. Following a preliminary range-finding test, activated sewage sludge was exposed to aqueous dispersions of the test item at nominal concentrations of 10, 18, 32 and 56 mg/L (five replicates of each) for a period of 3 h. Toxicity to micro-organisms was assessed by measuring the respiration rate. No statistically significantly toxic effects were shown at the test concentrations of 10, 18 and 32 mg/L, however statistically significantly toxic effects were shown at the test concentration of 56 mg/L. Based on these results the No Observed Effect Concentration (NOEC) after 3 h exposure was 32 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.
