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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to microorganisms

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Administrative data

Link to relevant study record(s)

Description of key information

EC50, 3h= 107 mg/L and a NOEC of 7.81 mg/L. (Clariant, 2007)
EC50,3h=32.6 mg/l (Clariant 1985)

Key value for chemical safety assessment

EC50 for microorganisms:
107 mg/L
EC10 or NOEC for microorganisms:
7.81 mg/L

Additional information

Two studies on the analogue substance for assessing the toxicity to microorganisms are available following OECD 209 (Clariant 2007 and 1985). The more recent study was chosen as more reliable with EC50 after 3 hours of exposure equal to 107 mg/l.

Based on the read across considerations, the toxicity to microorganisms of the analogue substance can be applied to the target substance with EC50 equal to 107 mg/l.