Registration Dossier
Registration Dossier
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EC number: 207-866-0 | CAS number: 498-66-8
PBT assessment
Administrative data
PBT assessment: overall result
- PBT status:
- the substance is not PBT / vPvB
- Justification:
The test substance has been tentatively assigned a classificaitaon for reprotoxicity, class 2. It therefore fulfils the toxicity criterion accoridng to Annex XIII, 1.1.3, REACH.
Log Pow is 4.1 and BCF was estimated < 1000, passing the screening criteria for bioaccumulation. Even though the substance is not readily biodegradable, calculations show a potential for hydrocarbon biodegradation. Volatilisation and atmospheric reactions are expected to be a major pathway of elimination. Hence the substance is not expected to meet P criteria.
In conclusion, Norbornene does not meet either P or B criteria.
- Likely routes of exposure:
based on the usage pattern (> 95% used on-site without release to the environment, the reminder used as monomer or intermediate under SCC) significant environmental exposure is not likely
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