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Ecotoxicological information

Endpoint summary

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Description of key information

Additional information

Short term fish

Key study: Read-across approach from experimental data on the analogue substance MPKO: Test method OECD Guideline 203, GLP study. The 96h LC50 value for rainbow trout was determined to be > 134 mg/L while the NOEC was 134 mg/L and the LOEC was >134 mg/L. Therefore, It can be concluded that the substance is not acutely toxic for fish.

 

Short term invertebrates

Key study: Read-across approach from experimental data on the analogue substance MPKO: Test method OECD Guideline 202, GLP study. The 48h EC50 (immobilisation) value for Daphnia magna was determined to be >134 mg/L, while the NOEC was >= 134 mg/L. Therefore, it can be concluded that the substance is not acutely toxic for invertebrates.

Short term algae

Key study: Read-across approach from experimental data on the analogue substance MPKO: Test method OECD Guideline 201, GLP study. The EbC50 (biomass) was determined to be 67 mg/L (95% CL: 63 -74 mg/L) and the ErC50 (growth rate) was 118 mg/L (95% CL: 96 -134 mg/L). The NOEC for both biomass and growth rate was 43 mg/L. Therefore, it can be concluded that the substance is not toxic for algae.

Toxicity to microorganisms

Key study: Read-across approach from experimental data on the analogue substance OS1600: Microbial toxicity was derived from an available ready biodegradation test performed with the analogue substance in accordance with OECD Guideline 301B (GLP study). Based on the read-across approach from the analogue substance OS1600 (NOEC = 21.5 mg/L), the NOEC for OS9600 was determined to be 25 mg/L for microorganism toxicity.