Registration Dossier
Registration Dossier
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EC number: 268-697-6 | CAS number: 68133-69-7
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
EC50 (48h) = 67.9 % of saturated solution (nominal loading 100 mg/l)
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 67.9 mg/L
Additional information
No experimental data on target substance was available for short term toxicity to aquatic invertebrates. Available data on Similar Substance 01 (purity 83 %) was used in a read across purpose. Details on read across procedure are reported in section 13.
Acute toxicity of 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 a 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 were below LOD of 0.04 mg/l in all loading levels; therefore, concentrations at 48 h were assumed to be below LOD, too.
At loading level of 25 % of saturated solution and below, no daphnids were found to be immobile; at 50 % and 100 %, 5/20 and 16/20 daphnids were immobile after 48 h of exposure. Effect levels at 48 h were derived: EL10 = 37.7 %, EL50 = 67.9 %, EL100 > 100 %.
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