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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 235-231-8 | CAS number: 12136-78-6
Long-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
Five relevant fish studies were identified for the freshwater environment, and using bounded and most relevant endpoints/end parameters, species-specific NOECs could be determined for the fathead minnow Pimephales promelas, the rainbow trout Oncorhynchus mykiss and the brown trout S.trutta. Test results were obtained in experiments that followed internationally accepted guidance, and were based on measured levels of dissolved molybdenum. The derived chronic reference values for for P. promelas, O. mykiss and S. trutta are 60.2 mg Mo/L, 43.2 mg Mo/L, and 202.5 mg Mo/L, respectively. Each of these values will be used for PNEC derivation as the statistical extrapolation method (i. e., species sensitivity distribution) is applied for the determination of a freshwater PNEC for Mo.
Key value for chemical safety assessment
Additional information
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.
