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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

EC50: 100 mg/l

Key value for chemical safety assessment

EC50 for microorganisms:
100 mg/L

Additional information

A complete study and two summaries are available performed according to OECD 209, on the substance under registration resulting in LC50 > 10000 mg/l (highest tested concentration). The summaries are consistent, and in agreement with the expected results for the category of Stilbene Fluorescent Whitening Agents and they can support the endpoint.

For the whole category twelve over fourteen registered substances were tested and none of the existing tests arisen any concern for microorganisms toxicity.

The conservative value of EC50 greater than 100 mg/l indicated in the key study has been considered as representative for Chemical Safety Assessment.