Registration Dossier
Registration Dossier
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EC number: 407-250-3 | CAS number: -
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
Additional information
The toxicity of direct yellow on microorganisms was tested in a inhibition control of a biodegradation test according to OECD 301A (CIBA-GEIGY 1990). At a concentration of 86 mg/L no inhibition was observed. A respiration inhibition test according to OECD guideline 209 confirmed this result (CIBA-GEIGY 1990). The IC50 value for respiration inhibition was beyond 100 mg/L (CIBA-GEIGY 1990).
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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