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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 947-835-5 | CAS number: -
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
No effect up to the limit of water solubility
Key value for chemical safety assessment
Additional information
The toxicity of target substance Nonanoic acid, esters with adipic acid and trimethylolpropane to aquatic algae was tested in a study following OECD guideline 201 (GLP). Green algae (Pseudokirchneriella subcapitata) were exposed to water accommodated fractions (WAF) of the test substance with nominal loading rates of 0.97, 3.11, 9.54, 31.32 and 100.45 mg/L. The test substance concentration was verified by TOC analysis at test start and test termination after 72 hours. The measured TOC-concentrations in the test item treatments were < LOQ (0 h) and below the control blank-value (72 h). No increase of C-content could be measured in the test item treatments. Effects on algal growth were not observed. The reported NOELR (72 h) is ≥ 100.5 mg/L (nominal loading rate). An EL50 could not be calculated.
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.
