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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 931-038-4 | CAS number: -
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Nonanal is acutely toxic to algae. Based on inital measured concentrations, the ErC50 was 4.5 mg/L. This result can be read across to N-/iso- C13-C15 aldehydes.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 4.5 mg/L
Additional information
The growth inhibiting effects of nonanal were investigated on the green alga Pseudokirchneriella subcapitata (reported asSelenastrum capricornutum) in a 72 -h study according to OECD TG 201. The initial test concentrations were set at (nominal/measured): 0/< LOQ (control), 0.25/0.196, 0.50/0.453, 1.0/0.759, 2.0/1.47, 4.0/3.20 and 8.0/6.42 mg/L. Final measured concentrations were <1 to 5 % of nominal concentrations. The test substance concentrations were analytically measured by HPLC/UV after 0 and 72 h. The physico-chemical parameters pH, temperature and light intensity were within the recommended ranges. The validity criteria of OECD TG 201 (March 2006) were fulfilled. Based on initial measured concentrations, the ErC50 was 4.5 mg/L. The NOEC was 0.759 mg/L for growth rate inhibition (Ward, 2003).
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.
