Registration Dossier
Registration Dossier
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EC number: 238-778-0 | CAS number: 14726-36-4
PBT assessment
Administrative data
PBT assessment: overall result
- PBT status:
- the substance is not PBT / vPvB
- Justification:
It can be stated that the substance does not fulfil the PBT criteria (not PBT) or the vPvB criteria (not vPvB).
Persistence: The hydrolysis test on Zinc bis(dibenzyldithiocarbamate) is waived due to the insolubility of the substance. Zinc bis(dibenzyldithiocarbamate) is not readily biodegradable under aerobic conditions. The biodegradation in water, sediment and soil simulation tests are waived due to technical infeasibility. Therefore, ZBEC is treated as P/vP assuming the worst case.
Bioaccumulation: The Physico-chemical properties of ZBEC and its lack of toxic effects observed in both tox and ecotox studies suggest that ZBEC cannot pass biological membranes and, therefore, will not be taken up by organisms. Furthermore, a structurally similar substance, albeit smaller and with more favourable Physico-chemical properties for uptake, did not bioaccumulate in fish (BCF 20 L/kg). Therefore. ZBEC is considered not B.
Toxicity: The test substance does not meet the criteria for classification as carcinogenic in Category 1A or 1B, mutagenic in Category 1A or 1B, reproduction in category 1A,1B or 2, or STOT RE in Category 1 or 2. No aquatic toxicity up to the water solubility of the substance was observed in all studies performed on the organisms from all three trophic levels (fish, invertebrates and algae). Therefore, the substance is not T.
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