Registration Dossier
Registration Dossier
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EC number: 212-344-0 | CAS number: 793-24-8
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
A test with activated sludge with a duration of 3 hours was performed according to ISO 8192 (Test for Inhibition of Oxygen Consumption by Activated Sludge). An EC50 of 420 mg/L related to the concentration of N-(1,3-dimethylbutyl)-N'-phenylbenzene-1,4-diamine was observed (Currenta 2012).
Key value for chemical safety assessment
- EC50 for microorganisms:
- 420 mg/L
Additional information
Two studies performed with p-hydroquinone, a secondary hydrolysis product of 6PPD, show that this substance is relatively toxic to organisms (NOEC 1 mg/L, IC50 71 mg/L).
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