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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

C12-18 AO and C12-18 Ao exhibit similar toxicity to Pseudomonas putida. The value of 24 mg AO/L from a study with C12-14 AO is used for the chemical safety assessment.

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
24 mg/L

Additional information

One reliable study is available for C12 -18 AO. In this study, Pseudomonas putida were exposed to nominal concentrations of 0, 50, 100, 1000, 10000 or 100000 mg/L of C12 -18 AO for 18 hours in a Bringmann-Kohn test [Kolvenbach M (1990)]. The EC10, based on reduction in growth rate, was 29.8 mg/L. In a similarly performed study using C12 -14 AO, the EC10 was 24 mg AO/L. This study is considered as the key study as the result is protective of C12 -18 AO.