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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Diss Factsheets

Ecotoxicological information

Short-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Description of key information

An acute toxicity study was performed on HDI Uretdion in accordance with the EU Method C.1 and under GLP. Considering the variable composition of the test substance, a Water Accommodated Fraction procedure was used (100 mg of the test substance was added to 1L of water). Fish (species: Danio rerio) were exposed to the WAF under static conditions (Bayer AG, 2000).
The endpoint is lethal loading rate. The 96 -h LL0 was found to be higher than 100 mg/L (nominal concentration). Based on the results of this study, HDI Uretdion would not be classified as harmful to fish in accordance with the classification system of the EU (Directive 67/548/EC). This toxicity study is classified as acceptable and satisfies the guideline requirement.

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
100 mg/L

Additional information

Should read >100 mg/L.