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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 263-319-6 | CAS number: 61916-41-4
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
IC50 (3h) > 2000 mg/l (nominal)
Key value for chemical safety assessment
- EC50 for microorganisms:
- 2 000 mg/L
Additional information
The inhibitory effect of Acid Violet 090 on the oxygen consumption of activated sludge microorganisms of a municipal sewage treatment plant was investigated under aerobic static conditions. The nominal concentrations of test item were 125, 250, 500, 1000 and 2000 mg/l, respectively. No chemical analysis of test concentrations was conducted; it was assumed that the test compound was stable in water over 3 h. At 2000, 1000 and 500 mg/l, respectively, respiration inhibitions of 32, 26 and 20 % were observed. At 250 and 125 mg/l the test substance showed no significant toxic effects to the activated sludge. The respiration rates were in the same range as determined for the two blank controls (Clariant SE, 2002).
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.
