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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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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Link to relevant study record(s)

Description of key information

Toxicity to microorganisms:
- EC50 (16h)= 1.5 mg/l for Pseudomonas putida (growth inhibition) (ISO/DIS 10712 (1995))
- EC10 (16h)= 0.34 mg/l for Pseudomonas putida (growth inhibition) (ISO/DIS 10712 (1995))

Key value for chemical safety assessment

EC50 for microorganisms:
1.5 mg/L
EC10 or NOEC for microorganisms:
0.34 mg/L

Additional information

In a 16-h toxicity study (Thiebaud H., 1995), according to the ISO/DIS 10712 norm, Pseudonomas putida was exposed to 11-aminoundecanoic acid at nominal concentrations of 0 (control), 1, 2, 5 and 10 mg a.i./L under static conditions. The inhibition of growth was measured by the turbity at each concentrations.

The 16 h- EC50was 1.5 mg a.i./L (0.044 - 3 mg/L) and the 16h-EC10was 0.34 mg a.i./L (0 - 1.1 mg/L)

Based on the results of this study, 11- aminoundecanoic acid shows toxicity to Pseudomonas putida.