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EC number: 201-224-3
CAS number: 79-77-6
Acutely toxic for fish
Two tests on the toxicity of Beta-Ionon to fish are available. A
guideline study conducted with Leuciscus idus in accordance with
Geman standard DIN 38412, part 15 detected a LC50 of 6.81 mg/l after 96
hours of exposure (BASF AG, 1989). This result is supported by a second
study performed in compliance with US EPA guidelines. In a semi-static
test system individuals of Pimephales promelas were exposed to
the substance and LC50 (96 h) of 5.09 mg/l was determined (Geiger et al.
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