Registration Dossier
Registration Dossier
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EC number: 203-767-1 | CAS number: 110-43-0
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
OECD 202 study conducted under GLP
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 100 mg/L
Additional information
The acute toxicity of Methyl n-amyl Ketone to Daphnia magna was determined in a 48-hour, semi-static, aquatic effects test. The test was conducted with five concentrations up to 100 mg/L (nominal), 90.1 mg/L (mean measured). There was no immobilization observed at any test concentration throughout the exposure. The 48-hour EC50 value for Daphnia magna was estimated to be > 90.10 mg/L (mean measured), the highest concentration tested. The NOEC was determined to be ≥ 90.1 mg/L. As no effects were seen at the highest concentration tested, 100 mg/L nominal (mean measured = 90.1 mg/L) it is believed that the EC50 measured would be > 100 mg/L as well, therefore the nominal value is being used for the key value for the safety assessment.
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