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EC number: 203-784-4
CAS number: 110-62-3
Valeraldehyde was tested on fathead minnows (Pimephales promelas) in a 96-h flow-through acute study. Based on mean measured concentrations, the 96-h LC50 was 12.4 mg/L.
Valeraldehyde was tested on fathead minnows
(Pimephales promelas) in a 96-h flow-through acute study. No specific
guideline was reported, but documentation is sufficient to assign
validity and good reliability. The test design is similar to OECD 203.
Five test concentration and 1 control were set up. One test chamber with
20 fish was used per test concentrations. The test concentrations were
analytically verified by GLC every day in each test chamber (recovery:
Concentrations were as follows:
nominal: 0 (control), 10, 15.4, 23.7, 36.4,
and 56.0 mg/L
measured (corrected average): < 1.0, 5.76,
9.52, 11.9, 22.6, 35.5 mg/L
Mortalities and signs of abnormal behaviour
were observedin the three highest concentrations. Based on mean measured
concentrations, the 96-h LC50 was 12.4 mg/L.
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