Registration Dossier
Registration Dossier
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EC number: 223-055-4 | CAS number: 3710-84-7
Endpoint summary
Administrative data
Description of key information
Diethylhydroxylamine (DEHA) aquatic toxicity profile has been investigated on different levels of the trophic chain: aquatic algae, aquatic invertebrates and fish. For algae and fish, no effect were observed at the highest concentration tested corresponding to 101 mg/L and 134 mg/L, respectively. Similarly, no toxic effect to micro-organisms was observed at 100 mg/L of DEHA according to a ready biodegradation screening test (OECD 301F).
Nevertheless, DEHA has been found to be toxic to daphnia with an 48h-EC50 of 8.2 mg/L (based on initial measured concentrations). Concentrations of DEHA were strongly decreased during the exposition because it was quickly converted into a nitrone oxidation product. Indeed, DEHA is known to be oxidized quickly in water by dissolved oxygen. Thus EC50 values were based on initial measured concentrations.
Additional information
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