Registration Dossier
Registration Dossier
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EC number: 272-789-1 | CAS number: 68911-83-1
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
The test substance was not toxic to wastewater (activated sludge) bacteria at or below a loading rate of 100 mg/L.
Key value for chemical safety assessment
- EC10 or NOEC for microorganisms:
- 89 mg/L
Additional information
A 3-h Activated Sludge Respiration Inhibition Test was conducted according to OECD Guideline 209 and GLP. The inoculum used was activated sludge of a predominantly domestic sewage. Concentrations tested were Control, 10, 100 and 1000 mg/L. The reference substance result was within required range, and control variability was valid. The test substance was not completely soluble in test medium at the loading rates initially prepared.Optimal contact between the test substance and test organisms was ensured applying continuous aeration and stirring. The 3-h EC10 of Reaction Product of Oleic acid, N1-(9Z)-9-octadecen-1-yl-1,3-propanediamine and paraformaldehyde to activated sludge was found to be 89 mg/L.
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