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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Non-toxic to microorganisms.

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
2 000 mg/L

Additional information

The inhibitory effect of similar substances on the oxygen consumption of activated sludge microorganisms of a municipal sewage treatment plant was investigated under aerobic static conditions.
Based on the results of all the available studies, Direct Orange 26 could be considered as non-toxic to microorganisms.