Registration Dossier
Registration Dossier
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EC number: 938-828-8 | CAS number: 1463474-95-4
Long-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
In accordance with column 2 of REACH Annex IX, a long-term toxicity test with fish (required in section 9.1.6) does not need to be conducted for HBED-Fe as the substance is shown to have a low potential for sorption (mean measured Koc of 15.33 L/kg) and low potential for bioaccumulation (estimated log Kow = -8.97). Together with the high water solubility of HBED-Fe (> 10 g/L) the substance is expected to be very mobile in the environment and will not absorb to sediment and soil. Thus, no bioaccumulation in the environment is expected. Acute toxicity studies with three different trophic levels (aquatic plants, daphnia and fish) revealing EC50 values over 100 mg/L, show that the structurally related substance EDDHMA-Fe is non-toxic to aqueous species. In an available long-term toxicity study with daphnia the results of the acute tests are confirmed with an NOEC of 320 mg/L. In addition, it was shown that the substance is subject to photolytical degradation. In conclusion, it can be expected that HBED-Fe will be degraded photolytically when reaching the surface water. Therefore, no further testing for long-term toxicity to fish is needed.
Key value for chemical safety assessment
Additional information
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