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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

LL50 (96 h) = 18.4 mg/L (Oncorhynchus mykiss)

Key value for chemical safety assessment

Additional information

No study on the acute toxicity to fish for Isoheptane is available. However, a study was conducted according to OECD 203 guideline with hydrocarbons, C7-C9, isoalkanes (CEFIC 1995). Based on a category approach data are read-across to this substance. The acute toxicity, as measured by mortality to rainbow trout (Oncorhynchus mykiss), was evaluated in freshwater by using water accomodated fractions (WAFs). Under the conditions of this study, the test substance, hydrocarbons, C7-C9, isoalkanes produced acute lethal toxicity to Oncorhynchus mykiss at 18.4 mg/L (CEFIC 1995) based on nominal loadings of the test substance in water.