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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 939-703-0 | CAS number: 1474044-75-1
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
In a 3-hr acute toxicity study sewage sludge microorganisms were exposed to the test item at nominal concentrations of 0, 12.3, 37, 111, 333 and 1000 mg/L in accordance with OECD 209. The EC50 value based on respiration rate after was 100 mg/L (95 % confidence limits 71.4 - 153.7 mg/L) after a 3 h contact time. The EC10 was determined as 1.1mg/L. This toxicity study is classified as acceptable and satisfies the guideline requirements for OECD 209 toxicity study.
Key value for chemical safety assessment
- EC50 for microorganisms:
- 100 mg/L
Additional information
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.
