Registration Dossier
Registration Dossier
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: 931-274-8 | CAS number: 28182-81-2
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The toxicity of HDI trimer to algae (Desmodesmus subspicatus) was assessed performing a study according to the German standard: DIN 38 412, Part 9 (1989) "Zellvermehrungshemmtest: Scenedesmus subspicatus CHODAT (Grünalge)", which is in most parts equivalent to the OECD TG 201. The 72h-EC10 was 370 mg/L. The EC50 was > 1000 mg/L.
In a supporting study the toxicity of HDI trimer to algae (Desmodesmus subspicatus) was assessed performing a study according to the Directive 92/69/EEC, C.3: Algal inhibition test, which is in most parts equivalent to the OECD TG 201. No inhibition of the algal population as reduction in growth rate was observed after 72 h at a test concentration of 100 mg/L. The results are expressed in terms of nominal concentrations.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 1 000 mg/L
- EC10 or NOEC for freshwater algae:
- 370 mg/L
Additional information
The key value for acute toxicity should read >= 1000 mg/L but "<=" may not be selected.
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.
