Registration Dossier
Registration Dossier
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EC number: 258-649-2 | CAS number: 53585-53-8
PBT assessment
Administrative data
PBT assessment: overall result
- PBT status:
- the substance is PBT / vPvB
- Justification:
Dibenzyltoluene (called now Dibenzylbenzene, ar-methyl derivative) can be considered as persistent based on the assessment of two of the main compounds of the substance:
- The half-life of o,m DBT in an OECD 309 study, was determined as 56 days concluding that this compound fulfils the P criteria. The estimated BCF value for this compound is 10 280 L/kg wet-wt meaning that this compound is potentially very bioaccumulable.
- The half-life of o,o DTPM in an OECD 309 study, was determined as > 10,000 days concluding that this compound fulfils the vP criteria. The estimated BCF value for this compound is 8513 L/kg wet-wt meaning that this compound is potentially very bioaccumulable.
- The substance Dibenzylbenzene, ar-methyl derivative is considered as T following the results of an OECD 211 given an EC10 = 1.4 µg/L and classification as Reprotoxic Category 1B.
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