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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 441-100-8 | CAS number: 351197-46-1
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The test substance UAX-1179 is not readily biodegradable according to the OECD criteria.
Key value for chemical safety assessment
Additional information
One study investigated the biodegradation of the test substance UAX-1179 (CAS: 351197-46-1) in a screening test (Grützner, 2002). The study was performed according to the OECD Guideline 301 F “Ready Biodegradability: Manometric Respirometry Test”. Activated sludge from a wastewater treatment plant, treating predominantly domestic wastewater was selected as inoculum. 103 and 101 mg/L of the test substance were tested for biodegradation. The test substance was biodegraded 4% (mean) after 28 days. According to the OECD criteria the test substance is not biodegradable within 28 days under conditions tested. An inhibitory effect of activated sludge microorganisms caused by the test substance can be ruled out because the biodegradation rate in the toxicity control was > 25% within 14 days.
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.
