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EC number: 203-988-3 | CAS number: 112-59-4
ADDITIONAL REPORTED EFFECT CONCENTRATIONS
- 48 -h EC0: ≥100 mg/L
- 48 -h EC100: >100 mg/L
DGHE is with high probability acutely not harmful to aquatic invertebrates.
The 48-h EC50 value is >100 mg/L in aquatic invertebrates Daphnia magna.
The acute toxicity to aquatic invertebrates was determined in a study according to OECD TG 202 and in compliance with GLP criteria (BASFSE, 1999). In this study daphnids (D. magna, 5 per concentration) were exposed to nominal concentrations of 0, 12.5, 25, 50, 100 mg/L for 48 hours. The two lowest and the highest concentration were analytically verified and remained within ±20%. Therefore, effect concentrations are expressed as nominal. Immobilization was recorded after 48 hours exposure. No immobilization was observed in any of the test concentrations. Based on these findings the 48 -h EC50 value was determined at >100.0 mg/L.
This result is supported by another study performed also according to OECD TG 202 (UCC/Dow, 1999). In this study daphnids (D. magna, 5 per concentration) were exposed to an unspecified range of test concentrations for 48 hours under static conditions. Immobilization was recorded after 48 hours exposure. The 48-h LC50 in this study was determined at 370 mg/L (95% C.I. 330 - 420 mg/L).
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