Registration Dossier
Registration Dossier
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EC number: 404-800-4 | CAS number: 118832-72-7 IRGANOX L 118
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
The study was performed according to OECD guideline no. 202 (1984). The respective EC50 is 1.3 mg/L, the respective EC100 is > 5.8 mg/L based on nominal concentrations. The measured concentrations amounted to 98-108% of nominal.
Key value for chemical safety assessment
Additional information
The acute toxicity to invertebrates was assessed according to OECD guideline 202. In this 24-hour static toxicity test with Daphnia magna, the EC50 value was 1.3 mg/L (nominal concentration). The measured concentrations amounted to 98-108% of nominal. The substance was mixed with DMSO and dispersed in the test water, yielding a final vehicle concentration of 1101 mg/l at the highest test concentration. Due to the very low water solubility, it is assumed that the compound was not fully solubilized but at least partially present as a suspension.
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