Registration Dossier
Registration Dossier
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EC number: 203-851-8 | CAS number: 111-26-2
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
In a test assessing the toxicity of the test substance to microorganisms, the EC50 was determined to be 306 mg/L and the EC10 was determined to be 167 mg/L.
Key value for chemical safety assessment
- EC50 for microorganisms:
- 306 mg/L
- EC10 or NOEC for microorganisms:
- 167 mg/L
Additional information
N-hexylamine was tested for its toxicity to Pseudomonas putida using a static procedure. The nominal test concentrations were 15.625, 31.25, 62.5, 125, 250, 500 and 1000 mg/L. The test duration was 17 hours. Based on growth inhibition, the EC50 was determined to be 306 mg/L, the EC10 was determined to be 167 mg/L.
In a second test, the substance was tested on activated sludge from an industrial wastewater treatment plant. The exposure duration was 10 min. Only one concentration (997 mg/L, nominal) was tested. Based on respiration inhibition, no effects were observed and the EC20 was determined to be greater than 997 mg/L. Determination of an EC50 value was not possible on the basis of these test results. Therefore the study was considered as not assignable.
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