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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 229-142-3 | CAS number: 6417-83-0
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
In a 3 h activated sludge respiration inhibition study conducted according to OECD Guideline 209 and according to GLP Principles, microorganisms in activated sludge were exposed to C.I. Pigment Red 63:1 at the following loading rates: 0 (blank control), 10, 100 and 1000 mg/L. The test substance did not inhibit the respiration rate at a loading rate of 1000 mg/L, therefore the NOELR was 1000 mg/L. The ELR50 was >1000 mg/L. The study met all validity criteria and is considered reliable without restriction.
Key value for chemical safety assessment
- EC10 or NOEC for microorganisms:
- 1 000 mg/L
Additional information
Changes in the respiration rate of activated sludge when exposed to the read-across substance (7023-61-2) were investigated in a GLP guideline study according OECD 209. The respiration of domestic activated sludge was monitored for 3 hours. The sludge bacteria were not affected by the substance. A NOEC of >= 100 mg/l determined (BASF SE 2007).
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.
