Registration Dossier
Registration Dossier
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EC number: - | CAS number: 1309389-73-8
Endpoint summary
Administrative data
Description of key information
Additional information
Aquatic toxicity
The available reliable ecotoxicity results selected for the effect of the substance on aquatic organisms are based on a supersaturated suspension with a loading rate of 10 mg/L (acute fish test) and 100 mg/L (invertebrate and algae tests), respectively, of the test substance (OECD Series, No. 23 (2000)).
The table below presents an overview of the available reliable toxicity data:
Trophic level | Species | Parameter | Endpoint | Value | Reference |
Acute toxicity, freshwater | |||||
Fish | Gobiocypris rarus | mortality | 96-h LC50 | > 0.0943 mg/L | Zhao Yu, 2016 |
Invertebrates | Daphnia magna | mobility | 48-h EC50 | > 79 µg/L | Peither, 2016 |
Algae | Pseudokirchneriella subcapitata | growth rate | 72-h EC50 | > 119 µg/L | Peither, 2016 |
Chronic toxicity, freshwater | |||||
Algae | Pseudokirchneriella subcapitata | growth rate | 72-h EC10 | > 119 µg/L | Peither, 2016 |
| Microorganisms | |||||
Activated sludge |
| respiration inhibition | 3-h EC50 | > 1000 mg/L | Han Xue, 2020 |
Fish
The results indicate that the substance does not effect the mortality of the freshwater fish Gobiocypris rarus after 96-hours of exposure up to the analytically measured concentration of 94.3 µg/L which corresponds to the solubility limit of the test item in test water at a loading rate of 10 mg/L.
Invertebrates
The results indicate that the substance does not effect the mobility of the freshwater invertebrate Daphnia magna after 48-hours of exposure up to the analytically measured concentration of 79 µg/L which corresponds to the solubility limit of the test item in test water at a loading rate of 100 mg/L.
Algae
The results indicate that the respective 72-h EC10 and 72-h EC50 for the inhibition of growth rate of the freshwater green algae Pseudokirchneriella subcapitata are above the highest nominal loading rate of 100 mg/L test substance, corresponding to a geometric mean measured concentration of 119 µg/L test substance.
Microorganisms
In a test according to OECD 209, the 3-hour EC50 value of the test item was greater than 1000 mg/L. The NOEC was determined to be 1000 mg/L, the highest concentration tested.
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