Registration Dossier
Registration Dossier
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EC number: 270-096-9 | CAS number: 68411-04-1
Endpoint summary
Administrative data
Description of key information
Additional information
Short-term toxicity to fish
Danio rerio was exposed under static conditions for 96 h to four nominal concentrations (3.16, 10, 31.6, 100 mg/L) of C.I. Direct Blue 264.
The following values were determined: LC0(96h) = 31.6 mg/L, LC100(96h) = 100 mg/L, geometric mean (LC0/LC100) = 56.2 mg/L.
Short-term toxicity to aquatic invertebrates
Dapnia magna was exposed under static conditions for 48 h to one concentration (100 mg/L) of C.I. Direct Blue 264. No toxic effect was observed.
Toxicity to aquatic algae
For C.I. Direct Blue 264 no toxic effects against algae were observed at a limit test concentration of 100 mg/L over a period of 72h.
Toxicity to microorganisms
For C.I. Direct Blue 264 an EC10 of 419 mg/L and an EC50 of 3490 mg/L were obtained in a test for toxicity to microorganisms. The effect values relate to nominal concentrations, since no analytical monitoring was performed.
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