Registration Dossier
Registration Dossier
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EC number: 415-890-1 | CAS number: 142770-42-1 QUANTACURE CPTX
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
The 48- LC50 for daphnids estimated using ECOSAR v1.11 for neutral organics was 0.105 mg/l. The calculation is reliable and validated. The model prediction is slightly above the limit of solubility. The model indicates that the chemical may not be soluble enough to measure this predicted effect.
Furthermore, the model instructions state that if the log Kow of the chemical is greater than the endpoint specific cut-offs
presented below, then no effects at saturation are expected for those endpoints.
Neutral Organics:
----------------
Maximum LogKow: 5.0 (Fish 96-hr LC50; Daphnid LC50, Mysid LC50)
Maximum LogKow: 6.4 (Green Algae EC50)
Therefore, since the measured log Kow for the test substance is greater than the cut-off value of 5, no effects are expected at saturation. Nevertheless, as a conservative approach, the predicted value of 0.105 mg/l is selected for the chemical safety assessment and for classification purposes.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Dose descriptor:
- LC50
- Effect concentration:
- 0.105 mg/L
Additional information
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