Registration Dossier
Registration Dossier
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EC number: 209-264-3 | CAS number: 563-80-4
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
One OECD 201 study conducted under GLP conditions
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 44.2 mg/L
- EC10 or NOEC for freshwater algae:
- 14.8 mg/L
Additional information
An OECD 201 study was conducted with Methyl Isopropyl Ketone (MIPK) using five nominal concentrations up to 125 mg/L. Significant losses (67 -78%) of the test material were observed over the 72 -hour exposure period and the results were expressed as the geometric mean of the measured test concentrations. The 72 hour EC50 for biomass was estimated to be 34.0 mg/L. The 72 hour EC50 for growth rate was estimated to be 44.2 mg/L. The 72-hour NOEC value for both biomass and growth rate was estimated to be 14.8 mg/L. The results for the growth rate endpoints are being used as the key values for the chemical safety assessment.
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