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EC number: 298-190-5 | CAS number: 93778-52-0
Due to the low water solubility limit of the test item a filtrate of a supersaturated stock suspension of nominal 100 mgIL was tested. Thus, no concentrations above the solubility limit of the test item in the used test water were tested. Additionally, a control was tested in parallel. The 48-hour EC 0 of 2 -decyltetradecanoic acid to Daphnia magna was determined to be at least up to the solubility limit of the test item in test water. The EC 0 might even be higher than this concentration, but concentrations in excess of the solubility limit have not been tested. The 48-hour EC 50 and EC 100 were clearly higher than the solubility limit. These values could not be quantified due to the absence of toxicity of 2 -decyltetradecanoic acid up to the highest test concentration which could be dissolved in test water.
For investigation of the acute toxicity of 2 -decyltetradecanoic acid an acute daphnia test according to OECD 202 was conducted. The EC50 (48 h) was > 100 mg/L. Due to low water solubility of the test substance a filtrate of a supersaturated stock suspension of nominal 100 mg/L was tested. The 48-hour EC50 was clearly higher than the solubility limit of the test substance in the used test water.
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