Registration Dossier
Registration Dossier
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EC number: 263-174-9 | CAS number: 61791-42-2
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
NOEC (3h) = 180 mg/L for activated sludge (OECD 209)
EC50 (3h) = 513 mg/L for activated sludge (OECD 209)
Key value for chemical safety assessment
- EC50 for microorganisms:
- 513 mg/L
- EC10 or NOEC for microorganisms:
- 180 mg/L
Additional information
The toxicity of Sodium methyl cocoyl taurate to aquatic microorganisms was determined according to the principles of OECD 209 (Fiebig, 2012). Test system was activated sludge of a municipal treatment plant. The test was carried out under static conditions with the following test substance concentrations 100, 180, 320, 560 and 1000 mg/L. The respiration rates of the control, reference and test item replicates were measured after a contact time of three hours. The NOEC andEC50 of the test item Sodium methyl cocoyl taurate was determined as 180 mg/L and 513 mg/L, respectively.
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