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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 203-377-1 | CAS number: 106-24-1
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
Depending on local conditions and existing concentrations, disturbances in the biodegradation process of activated sludge are possible.
Key value for chemical safety assessment
Additional information
Two guideline studies on the respiration and growth of microorganisms respectively are available. A study conducted in compliance with OECD 209 investigated the respiration inhibition induced by the substance in activated sludge. Based on the respiration rate a EC50 of 70 mg/l was determined after an inoculation time of 30 minutes (BASF AG, 1994). In a second study following DIN 38412, part 8 the effect of the substance on the growth of Pseudomonas putida was terminated after 16 hours inoculation time. The study reports an EC50 of 3832 mg/l (BASF AG, 1994).
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.
