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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 205-187-4 | CAS number: 135-37-5
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
The most reliable study with the actual substance as performed by Dow was selected as key study.
The LC50 value was > 101 mg/L, as confirmed by other studies with a comparable substance, see read across justification
Key value for chemical safety assessment
Additional information
The study by Dow with rainbow trout according to the OECD guideline 203 with the actual substance showed a measured LC50 value of > 101 mg/L.
Arthur et al (1974) presents 96 hr TL50 (or LC50) results of 103 and 125 mg/L Na3NTA for the fathead minnow in soft water, Pimephales promelas. Tests were conducted according to APHA (1971) Standard Methods 13 ed.
Weaver (1967) exposed bluegill to Na3NTA in batch and flow-through tests, in soft and hard waters. This study was deemed reliable with restrictions as the study was missing some testing information which did not affect the overall conclusion of the test.
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.
