Registration Dossier
Registration Dossier
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EC number: 218-760-9 | CAS number: 2226-96-2
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
4-Hydroxy TEMPO was tested for toxicity to microorganisms in a 16 hour study on Pseudomonas putida test according to DIN 38412. An EC50 of 890 mg/L and an EC10 of 430 mg/L was assessed.
Key value for chemical safety assessment
- EC50 for microorganisms:
- 890 mg/L
- EC10 or NOEC for microorganisms:
- 430 mg/L
Additional information
The toxicity of 4 -Hydroxy TEMPO to microorganisms was investigated according to DIN 38412, part 8 (Pseudomonas Zellvermehrungshemm-Test). Pseudomonas were exposed to the test item for 16 hours to nominal concentrations of 313, 625, 1250, 2500, 5000 and 10000 mg/L. The EC50 based on growth inhibition was assessed at 890 mg/L. The EC10 was determined at 430 mg/L.
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