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EC number: 931-038-4 | CAS number: -
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- Aquatic toxicity
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- Short-term toxicity to fish
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Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
n/i-C13 -C15 –aldehydes are acutely toxic to fish. The LC50 (96 hrs) was >0.4 and <0.9 mg/L.
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 0.8 mg/L
Additional information
The acute toxicity of n/i-C13 -C15 –aldehydes was tested compliant with GLP in a valid OECD TG 203 (1992) assay using zebra fish (Brachydanio rerio), using Tween 80 as emusifier. The analytically verified concentrations were 0, 0.4, 0.9, and 1.6 mg/L. A solvent control with emulsifier Tween 80 was included.
After 96 hours mortality was 0, 71, and 100% in groups exposed to the low (0.4 mg/L mean measured), intermediate (0.9 mg/L mean measured), and high (1.6 mg/L mean measured) test concentration. The LC50(96 hrs)was >0.4 mg/L and <0.9 mg/L in this study (Hoechst, 1994). For the purpose of assessing the PNEC, the 96 -h LC50 was recalculated by forming the geometric mean of the 96 -h LC0 and LC100. This resulted in a 96 -h LC50 of 0.8 mg/L.
This study is considered to be valid and useful for assessment.
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