Registration Dossier
Registration Dossier
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EC number: 224-207-2 | CAS number: 4246-51-9
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
With high probability acutely not harmful to aquatic invertebrates
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 218.16 mg/L
Additional information
An acute study was performed with Daphnia magna according to EU Method C2. The test item concentrations were not analytically verified. However, it is assumed that the test concentrations remained stable over the exposure period based on a high water solubility, a low potential to evaporate into air (Henry’s Law constant < 1 Pa*mol/cm³) and a low potential for adsorption (log Kow and log Koc < 3). The test solutions were not pH-adjusted. The test substance causes a pH-shift to more alkaline conditions with increasing concentrations. The recommended pH range for daphnids given in the OECD TG 202 (pH 6 - 9) was only kept in the control (0 mg/L) and in the treatment 31.25 mg/L, while the test solutions ≥ 62.5 mg/L showed initial pH values above 9. After 48 hours, the pH value shifted to acceptable levels in all treatments.However, an influence of the pH value on the toxicity of 3,3'-oxybis(ethyleneoxy)bis(propylamine) towards daphnids cannot be excluded.
The resulting EC50 value of 218.16 mg/L indicates that the compound is with high probability acutely not harmful to aquatic invertebrates (BASF AG, 1989; report no. 1/0505/2/89 -0505/89).
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