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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 807-717-5 | CAS number: 295800-70-3
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Pseudokirchneriella subcapitata was exposed to seven concentrations of Spectrace ™ MD-810 Marker (Solvent Free) and evaluated for effects on cell density, growth rate and yield. Cell density and yield were the most sensitive endpoint, as defined by the lowest 96-hour EC50 values of 4.6 mg/L.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 4.6 mg/L
Additional information
Pseudokirchneriella subcapitata was exposed to seven concentrations of Spectrace ™ MD-810
Marker (Solvent Free) and evaluated for effects on cell density, growth rate and yield. Cell density and
yield were the most sensitive endpoint, as defined by the lowest 96-hour EC50 values of 4.6 mg/L, with
the 95% confidence intervals of 3.9 to 5.5 mg/L. The 72-hour NOECs, based on cell density, growth rate
and yield were 0.024, 0.27 and 0.024 mg/L, respectively. The 96-hour NOECs for cell density, growth
rate and yield were 0.90, 0.90 and 0.90 mg/L, respectively.
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.
