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Ecotoxicological information

Toxicity to terrestrial plants

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Description of key information

IC50 (14-day): 209 mg/kg dry weight, root dry mass, Hordeum vulgare, reliability 2, read-across from CAS: 541-02-6
EC50 (14-day): >4054 mg/kg dry weight, seedling emergence, root and shoot length and root and shoot dry mass, Trifolium pratense, reliability 2, read-across from CAS: 541-02-6

Key value for chemical safety assessment

Additional information

There are no data describing the long-term toxicity of the registered substance to terrestrial plants. However, data are available for the siloxane decamethylcyclopentasiloxane (D5, CAS: 541-02-6). A 14-day IC50 value of 209 mg/kg dry weight has been determined for the effects of the test substance on root dry mass of Hordeum vulgare. IC50/EC50 values for effects on seedling emergence, root and shoot length and shoot dry mass determined in the same test were ≥248 mg/kg dry weight. 14-day EC50 values of >4054 mg/kg dry weight have been determined for the effects of the test substance on seedling emergence, root and shoot length and root and shoot dry mass of Trifolium pratense. NOECs were not determined in the tests. The read-across is considered to be reliability 2.