Registration Dossier
Registration Dossier
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EC number: 209-691-5 | CAS number: 590-86-3
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Algal growth inhibition: Desmodesmus subspicatus: 72-h ErC50 = 113 mg/L, 72-h ErC10 = 72 mg/L (no analytical monitoring)
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 113 mg/L
- EC10 or NOEC for freshwater algae:
- 72 mg/L
Additional information
The growth inhibiting effect of isovaleraldehyde on algae was tested with Desmodesmus subspicatus (reported as: Scenedesmus subspicatus) according to German Industrial Standard DIN 38412, part 9. The initial cell density of 1.3E04 cells/mL. The exposure duration was 96 h. No analytical monitoring was performed.
The reported effect values are: 72 -h ErC10 = 72 mg/L, 72 -h ErC50 = 113 mg/L, 72 -h EbC10 = 33 mg/L, 72 -h EbC50 = 80 mg/L
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