Registration Dossier
Registration Dossier
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EC number: 259-563-8 | CAS number: 55281-26-0
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
EC50 (48h) = 18.6 mg/l
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 18.6 mg/L
Additional information
No experimental data on the target substance was available for short term toxicity to aquatic invertebrates. Available data on Similar Substance 02 was used in a read across purpose. Details on read across procedure are reported in section 13.
Acute toxicity of the test substance to daphnia magna was determined in a 48-hour static test according to the OECD guideline 202.
Nominal concentrations tested were 100 %, 50 %, 25 %, 12.5 % and 6.25 % of saturated solution obtained from a nominal loading of 100 mg test substance/l. A negative control was also used.
Measured concentrations at time 0 h and 48 h after start of exposure were below the lowest calibration level. At 25 mg/l, immobilisation of 18/20 daphnids was seen; at higher concentrations, all daphnids were immobile. An EC50 (48h) value of 18.6 mg/l was determined.
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