Registration Dossier
Registration Dossier
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EC number: 202-676-4 | CAS number: 98-52-2
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
ErC50 (72h) = 45 mg/L and NOErC = 14 mg/L for Scenedesmus subspicatus (according to EU Directive 92/69/EWG)
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 45 mg/L
- EC10 or NOEC for freshwater algae:
- 14 mg/L
Additional information
The toxicity of 4 -tert-butylcyclohexanol to algae was investigated in a study on Scenedesmus subspicatus (94 -0230 -DGO). The dose-response study was conducted according the EU Directive 92/69/EWG under GLP conditions. The analytical verification of the test substance concentrations (carbon determination) were included. The test resulted in an ErC50 (72 h) of 45 mg/L (measured, geometric mean) and NOErC of 14 mg/L (measured, geometric mean).
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