Registration Dossier
Registration Dossier
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EC number: 241-883-4 | CAS number: 17958-73-5
PBT assessment
Administrative data
PBT assessment: overall result
- PBT status:
- the substance is not PBT / vPvB
- Justification:
Persistence Assessment
The substance is neither readily nor inherently biodegradable in standard tests for biodegradability. However, the substance is subject to photolysis.
Bioaccumulation Assessment
Due to the very low log Kow of less than 0, the substances have no potential for bioaccumulation. The log Kow of the substance is very much lower than the threshold value of the screening criterion for B (log Kow>4.5). Furthermore experimental tests on an analogous substance of the Stilbene Fluorescent Whitening Agents category on fish have been performed and no evidence for bioaccumulation was indicated.
In all experiments performed only trace concentrations (less than 0.05 mg/kg) of the tested substance were present in the fish at exposure levels up to of 1 mg/l. In most instances, no detectable substance levels have been found.
Therefore B-criterion is not fulfilled.
Toxicity Assessment
The substance is non toxic to mammalian and aquatic organisms. The substance is classified neither for environmental toxicity nor as CMR or T, R 48 or Xn, R 48. It can be concluded that the substance has no toxic properties.
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