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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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Ecotoxicological information

Short-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Description of key information

LC50 (96h) = 0.76 mg a.i./L (Oncorhynchus mykiss)

Key value for chemical safety assessment

Additional information

No short-term toxicity studies investigating the effects of KDDC in fish species are available and therefore, conclusions on this endpoint had to be drawn based on data from an analogue substance. The acute toxicity of SDDC (CAS No. 128-04-1) to Oncorhynchus mykiss was investigated by Van der Kerken (2003). This test was conducted according to OECD No. 203, Fish, Acute Toxicity Test (1992) and GLP. Fishes were exposed to the test material for 96 hours under a semi-static water regime (medium renewal took place every 24 hours). Mortality was observed at the two highest concentrations tested (0.57 and 1.13 mg a.i./L), resulting in a LC50 = 0.76 mg a.i./L. Additionally, other effects as reduced movement and weakness were reported (at concentrations of 0.28, 0.57 and 1.13 mg a.i./L).