Registration Dossier
Registration Dossier
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EC number: 477-700-1 | CAS number: 883794-93-2
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
NOEC (72 h): ≥ 100 mg/L for Desmodesmus subspicatus (OECD 201)
EC50 (72 h): > 100 mg/L for Desmodesmus subspicatus (OECD 201)
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 100 mg/L
- EC10 or NOEC for freshwater algae:
- 100 mg/L
Additional information
One study is available investigating the effects of Bis(2,8,9-Trioxa-5-aza-1-silabicyclo(3.3.3)undecane-1-propane-)disulfide (CAS 883794-93-2) to freshwater algae. The study was performed according to OECD 201 (GLP) with Desmodesmus subspicatus as test organism. Nominal test concentrations up to 100 mg/L were tested. Inhibition of growth rate was not observed in this study. Thus, the EC50 (72 h) was derived as > 100 mg/L and the NOEC (72 h) as ≥ 100 mg/L. Since the test substance is susceptible to hydrolysis in water, the result mainly reflects the effects of the hydrolysis products rather than the parent substance.
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