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EC number: 207-856-6
CAS number: 498-15-7
The substance exhibits an EC50 for freshwater invertebrates of 0.8 mg/L.
One reliable study is available for the
substance itself and is selected as key study. The toxicity of delta-3
-carene to freshwater Daphnia magna was studied according to OECD
202 and GLP. Daphnids were exposed to substance at nominal test
concentrations of 1.0,
1.1, 1.3, 1.5, 1.7 and 2.0 mg/L over a test period of 48 hours.
Concentrations were analytically verified at
the start and daily until the end of the test (old and new test media).
The concentration of the test item was not satisfactorily maintained
within ± 20% of the initial concentration throughout the test. Thus, the
endpoint was based on the geometric means of the measured
concentrations. The 48h-EC50 was determined to be 0.80 mg/L.
48h-EC50 is valid for key value for chemical safety assessment and is supported
by QSAR results.
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