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EC number: 405-820-6
CAS number: 30025-38-8
48hr EC50 >150mg/l, QSAR estimate: 2297mg/l.
In a guideline (OECD 202) and GLP acute toxicity study (48 -hr; static),
Daphnia magna were exposed to dipropylene glycol monoethyl ether at
concentrations up to 150 mg/L. Based on the findings of this study the
48 -hr EC50 for immobilization of daphnia by DPGEE was extrapolated to
be ~180 mg/L (77 - 425 95% CL). This result seems unusually low and is
in fact lower than the NOEC from the reproduction (chronic) study; US
EPA ECOSAR software (v1.00a) estimates the 48 -hr Daphnid LC50 for
dipropylene glycol monoethyl etherto be 2297 mg/L, respectively. This
difference should be taken into account in the choice of appropriate
starting points and assessment factors for the derivation of the short
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