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EC number: 256-181-3
CAS number: 45021-77-0
The EC50 (growth rate for diallyldimethylammonium chloride has been established at >100 mg/L based on 3 GLP studies on 2 different strains of unicellular green algae. The ErC10 for freshwater algae in a long-term study (96 hours) was 57 mg/L.
toxicity of diallyldimethylammonium chloride to unicellular green algae
has been tested recently in 3 GLP studies on 2 recommended test species: Desmodesmus
subspicatus (2 studies) and Pseudokirchneriella subcapitata (1
one of these studies (Vreyenhof, 2009) was the EC50 for growth rate at
72 hours under 100 mg/L (91 mg/L). This value, however, was less than
10% below 100 mg/L and its upper 95% confidence limit was 100 mg/L. At
96 hours the value was 120 mg/L showing decreasing toxicity with time
and supporting the upper 95% CL value.
the above into account along with the LC50/fish of 420 mg/L, the
EC50/daphnia of >100 mg/L and the EC0/bacteria of >1000 mg/L, the EC50
growth rate of diallyldimethylammonium chloride for
unicellular green algae has been established at >100 mg/L.
96 hours the ErC10 for the freshwater algae Desmodesmus
was 57 mg/L.
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