Registration Dossier
Registration Dossier
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EC number: 220-290-4 | CAS number: 2702-72-9
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
IC50 (72h) > 1000 mg test substance/L (920 mg a.i./L) (Scenedesmus quadricauda)
Key value for chemical safety assessment
Additional information
The toxicity of sodium 2,4-dichlorophenoxyacetate (CAS No. 2702-72-9) to algae was investigated in a study by Raszka (1996). This test was performed according to OECD Guideline No. 201, Algae, Growth Inhibition test (1984). After 72 hours of exposure to the test item, no significant inhibitory effects on growth of Scenedesmus quadricauda were observed and an IC50 above 1000 mg test substance/L (corresponding to 920 mg a.i./L) was determined.
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