Registration Dossier
Registration Dossier
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EC number: 944-699-9 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Short-term toxicity tests are available for fish, invertebrates, and micro organisms.
Additional information
Physico-chemical tests with the test substance demonstrated a very poor water solubility of the test substance with an overall solubility of less than 1 ug/L. From a regulatory point of view tests on toxicity to the aquatic environment do not need to be performed.
Nevertheless, toxicity tests to fish have been performed in the past. A study performed in 1987 to determine the acute toxicity of FAT 36002 as isomeric mixture in fish following guideline similar to OECD test guideline 203 using Zebra fish reported an LC50 >100 mg/L.
A study performed in 2015 using a similar substance to assess the toxicity to aquatic invertebrates Daphnia magna reported the 48-hour NOEC (highest tested concentration without toxic effects after the exposure period of 48 hours), respectively the 48-hour EC 0 of FAT 36038/F to be at least nominal 100 mg test substance/l. Since concentrations in excess of nominal 100 mg test substance/l have not been tested, the NOEC might even be higher than this concentration. The 48-hour EC 50 of the test substance could not be determined due to the low toxicity of the test substance.
As an overall result and due to the poor water solubility, toxicity to aquatic algae caused by the test substance could not be demonstrated as the test was not conducted. Because of poor water solubility it was decided not to further test for toxicity to aquatic plant.
Independent to above findings toxicity testing on microorganisms were performed to assess if the test substance harvests bacteriotoxic or bacteriostatic capacities.For microorganisms, studies conducted 1987 using activated sludge from a domestic wastewater treatment plant reported an 3 h IC50 of >400 mg/L.
The values from above mentioned studies suggests that FAT 36002 is non-toxic to aquatic organisms.
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