Registration Dossier
Registration Dossier
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EC number: 217-915-8 | CAS number: 2008-39-1
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
A NOEC = 32 mg test substance/L (16.4 mg a.i./L) was determined for algae species
Key value for chemical safety assessment
Additional information
The toxicity of dimethylammonium 2,4-dichlorophenoxyacetate (CAS No. 2008-39-1) to algae species was investigated in two studies by Zmijowski (2006). The key study was conducted according to OECD Guideline No. 201, Algae, Growth Inhibition Test, under GLP conditions.Anabaena flos-aquae was exposed to the test material for 72 hours, and EC50 and NOEC values were determined, being 116.7 and 32 mg test substance/L (corresponding to 59.9 and 16.4 mg a.i./L respectively). The additional study, conducted following the same guideline under GLP, resulted in similar toxicity values and a NOEC = 32 mg test substance/L (16.4 mg a.i./L) was obtained as well for Pseudokirchnerella subcapitata.
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