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Description of key information

Isooctene is acutely toxic to aquatic algae.

Key value for chemical safety assessment

Additional information

Since no test data on the aquatic toxicity of isooctene (CAS-No.: 11071 -47 -9) are available a conclusion by analogy approach to di-n-butene has been applied.

In an toxicity test on Scenedesmus subspicatus according to EU guideline, the EC50 (72h) for the growth rate was determined to be 4.8 mg/L [OXENO Olefinchemie GmbH 2003].