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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 403-700-8 | CAS number: 2687-94-7 NOP; SURFADONE LP-100 SURFACTANT
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The 72h ECb50 for N-(n-octyl)-2-pyrrolidinone to green algae was 16.6 mg/L and the NOEC was 3.7 mg/L.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 16.6 mg/L
- EC10 or NOEC for freshwater algae:
- 3.7 mg/L
Additional information
The acute toxicity of N-(n-octyl)-2-pyrrolidinone was studied in a 72h static test according to OECD 201. The 72h ECb50 for N-(n-octyl)-2-pyrrolidinone to green algae was 16.6 mg/L and the NOEC was 3.7 mg/L. The study was found to be reliable and therefore these values are taken as the endpoints.
The EC50 values are both above the values required for classification, and so N-(n-octyl)-2 -pyrroldinone is not classified as toxic to aquatic organisms.
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.
