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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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Diss Factsheets

Ecotoxicological information

Toxicity to microorganisms

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Administrative data

Link to relevant study record(s)

Description of key information

The study of bacterial toxicity demonstrated a 18 hour EC10 of 44.6 mg/l maleic anhydride to Pseudomonas putida.

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
44.6 mg/L

Additional information

Two studies on the toxicity to aquatic microorgannisms can be defined as reliable with restrictions. The first study of bacterial toxicity was found demonstrating a 18 hour EC10 of 44.6mg/l maleic anhydride to Pseudomonas putida. Another study used Luminescent Bacteria Toxicity Test found out the 15min EC50 of 12.5mg/l maleic anhydride to Photobacterium phosphoreum.