Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 228-567-1 | CAS number: 6297-03-6
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
The EC50 value is assumed to be greater than 1000 mg/L.
Key value for chemical safety assessment
Additional information
The objective of this study according to OECD No. 209 was to determine the effect of different concentrations of test substance on sewage microorganisms by measuring the respiration rate under defined conditions. The test was conducted at concentrations of 62.5, 125, 250, 500 and 1000 mg/L. Based on these results, the EC50 value was calculated to be greater than 1000 mg/L.
The EC50 value of for the reference substance 3,5-dichlorophenol was calculated to be 2.7 mg/L, which was within the acceptable limits,(5.0 to 30 mg/L) as specified in OECD 209 Guideline. Thus, all validation criteria were fulfilled.
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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