Registration Dossier
Registration Dossier
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EC number: 931-534-0 | CAS number: 68439-57-6
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
The 48h-LC50 for aquatic invertebrates was determined to be 4.53 mg/L for the freshwater species Ceriodaphnia dubia (Warne & Schifko, 1999) and 2.08 mg/L with 100 % active ingredient for the marine species Acartia tonsa.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 4.53 mg/L
Marine water invertebrates
Marine water invertebrates
- Effect concentration:
- 2.08 mg/L
Additional information
A LC50 of 4.53 mg/L was published for the freshwater invertebrate species Ceriodaphnia dubia, which is not identical to Ceriodaphnia dubia, after an exposure duration of 48 h (Warne & Schifko, 1999). The test method was similar to OECD Guideline 202. A test with the marine copepod Acartia tonsa following Guideline ISO/TC 147/SC5/WG2 resulted in a 48h-LC50 of 5.5 mg/L with 37.9 % active ingredient and 2.08 mg/L for 100 % substance (Torp, 1997).
Furthermore, several results for Daphnia magna are published with LC50 ranging from 9.26 mg/L to 19 mg/L. The LC50 for Daphnia pulex resulted in 26 mg/L. However, the study duration of these publications was 24 h only instead of 48 h as recommended by current standard guidelines.
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