Registration Dossier
Registration Dossier
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EC number: 249-171-5 | CAS number: 28706-25-4
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
LC50 is >100 mg/|.
The no-observed-effect concentration (NOEC) is >100 mg/|.
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Dose descriptor:
- LC50
- Effect concentration:
- > 100 mg/L
Additional information
The short-term toxicity of the structurally related substance "Analogue substance 1" to fish was investigated in three different studies. In a guideline study according to OECD 203 a LC50 (96h) > 100 mg/L was observed on Poecilia reticulate (Clariant, 2002). This result is substantiated by the outcome of two studies conducted by Little et al. in which the TL50 values on Pimephales promelas exceeded 180 mg/L in both cases (Little et al. 1972, 1974). These results are considered to be adaptable for the test substance as well due to their structural similarities. Based on the values obtained for "Analogue substance 1" the test substance is considered to be acutely not harmful to fish.
Read across document is attached in section 13.
Finally, a summary is available on Direct Red 239, following OECD 202 (Kemira, 1989), but unfortunately the original report could not be retrieved.
The information available show an EC50 > 1000 mg/l, confirming the non toxicity to fish of the tested substance.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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