Registration Dossier
Registration Dossier
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EC number: 408-210-8 | CAS number: 124605-82-9 C.I. DIRECT BLUE 301; DIRECT BLUE 301
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
The inhibition of the degradation activity of activated sludge is not anticipated when introduced in appropriate low concentrations.
Key value for chemical safety assessment
- EC10 or NOEC for microorganisms:
- 100 mg/L
Additional information
In an OECD 209 guideline study conducted by Ciba-Geigy in 1990 the effect of the test substance on the respiration rate of activated sludge that was derived from a Husman apparatus was determined. After 3 hours of exposure no adverse effect on the respiration rate was observed and therefore the EC0 was determined as > 100 mg/L. The inhibition of the degradation capacity of activated sludge is not anticipated from the test 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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