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EC number: 242-060-2
CAS number: 18172-67-3
The determination of the 72h-EC50 and the 72h-EC10 (algae) of (-)-beta-pinene is based on one experimental study and one QSAR.Measured and estimated data ranging from EC50 0.70 mg/L to 0.826 mg/L.
One experimental study and one QSAR are
available to determine the 72h-EC50 and the 72h-EC10 (algae)
In a 48-hour acute toxicity study, the
cultures of Pseudokirchneriella subcapitata were exposed to
(-)-beta-pinene at nominal concentrations of 2.0, 2.5, 3.1, 3.9, 4.8
mg/L under static conditions in accordance with the OECD TG 201. The EC10
and EC50 values based on growth rate were 0.378 and 0.826
mg/L, respectively. The 72h-ErC50 and the 72h-ErC10
obtained in this study can be used as key values for chemical
A QSAR model was used to predict the
inhibition of growth to algae of the test item (-)-beta-pinene. This
QSAR has been validated to be compliant with the OECD recommendations
for QSAR modeling (OECD, 2004) and predicts the endpoint value which
would be expected when testing the substance under experimental
conditions in a laboratory following Guideline for Testing of Chemicals
No. 201, "Freshwater Alga and Cyanobacteria, Growth Inhibition Test",
referenced as Method C.3 of Commission Regulation No. 440/2008. The
72-hour ErC50 is predicted as 0.70 mg/L.
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