Registration Dossier
Registration Dossier
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EC number: 911-616-2 | CAS number: -
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
- Endpoint:
- activated sludge respiration inhibition testing
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the substance is found to be readily biodegradable and the applied test concentrations are in the range of concentrations that can be expected in the influent of a sewage treatment plant
Reference
Description of key information
The substance is readily biodegradable.
The supporting study shows that high concentrations of sulfonatofatty acid methyl esters did not inhibit the oxidative performance of activated sludge.
Key value for chemical safety assessment
- EC10 or NOEC for microorganisms:
- 100 mg/L
Additional information
The tested concentration in the ready biodegradability test at which toxicity can be ruled out can be considered as a NOEC for the toxicity to STP microorganisms.
The key study on C16MES for ready biodegradation reveals a NOEC of 100 mg/L.
This value is also considered valid to be used for C18MES based on the ready biodegradability and the similar structure of both components.
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.
