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Short-term toxicity to fish

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Description of key information

Short term toxicity to fish was estimated for 96 hrs aquatic toxicity study from EPI suite, 2016 ECOSAR version 1.1 predicted model.
Study was conducted to assess toxic effects of the test compound 3-(1H-benzimidazol-2-yl)-7-(diethylamino)-2-benzopyrone (CAS no 27425 -55 -4) on fish. The predicted data suggests the lethal concentration (LC50) for the test compound was estimated to be 8.519 mg/l. 
According to CLP regulations, the chemical was classified in chronic category 2 but as the test chemical was readily biodegradable in water and Bioaccumulation factor i.e BCF also less than 500 reported as 124.1 based on these conditions the test chemical was considered as not toxic to fish and thus not consider for further classification.

Key value for chemical safety assessment

LC50 for freshwater fish:
8.519 mg/L

Additional information

Short term toxicity to fish was estimated for 96 hrs aquatic toxicity study from EPI suite, 2016 ECOSAR version 1.1 predicted model.

Study was conducted to assess toxic effects of the test compound 3-(1H-benzimidazol-2-yl)-7-(diethylamino)-2-benzopyrone (CAS no 27425 -55 -4) on fish. The predicted data suggests the lethal concentration (LC50) for the test compound was estimated to be 8.519 mg/l. 

Supporting experimental study also indicate that the test substance is non toxic to fish with NOEC value 20 mg/l. (UERL lab report ;2016)

According to CLP regulations, the chemical was classified in chronic category 2 but as the test chemical was readily biodegradable in water and Bioaccumulation factor i.e BCF also less than 500 reported as 124.1 based on these conditions the test chemical was considered as not toxic to fish and thus not consider for further classification.