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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

TLm > 1000 mg/l

Key value for chemical safety assessment

Additional information

37 kinds of dyes which contained nitrogen were subjected to TLm test by use of Himedaka ( Oryzias latipes), and the results were compared with their partition coeffieients between n-octanol and water. Concerning organic nitrogen compounds, such good correlation was observed among them that the larger the partition coeffieient was, the smaller was the TLm value. Their acute toxicity to fish was supposed to be revealed after their passage through cell membrane of fish to be accumulated in the body. As far as coal tar dyes and dyestuffs were concerned, there was a correlation between partition coefricient and TLm value.

The TLm value calculated for the test substance was > 1000mg/l.