Registration Dossier
Registration Dossier
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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: 212-661-4 | CAS number: 840-65-3
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
In an OECD 209 study, conducted to GLP, the 3-hour EC50 of NDC for the respiration of activated sewage sludge micro-organisms is greater than 1000 mg/L. The 3-hour No Observed Effect Concentration (NOEC) is 1000 mg/L (Harlan Laboratories Limited, 2013).
Key value for chemical safety assessment
- EC50 for microorganisms:
- 1 000 mg/L
- EC10 or NOEC for microorganisms:
- 1 000 mg/L
Additional information
Acute toxicity to microorganisms:
In an OECD Guideline 209 study, conducted according to GLP, the 3 -hour EC50 of NDC for the respiration of activated sewage sludge micro-organisms is >1000 mg/L. The No Observed Effect Concentration (NOEC) is 1000 mg/L (Harlan Laboratories Limited, 2013).
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
