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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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Classification & Labelling & PBT assessment

PBT assessment

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Administrative data

PBT assessment: overall result

PBT status:
the substance is not PBT / vPvB
Justification:

An OECD 305 study has demonstrated that the substance can be considered as B but not vB.


Available short term and long term studies on aquatic organisms show no adverse effects up to the highest tested concentrations. Therefore, the substance does not fulfil the T criteria.


Regarding the P assessment, the available OECD308 data support the OECD309 data observed in water (not in air) and demonstrated rapid primary (bio)degradation. Due to several deficiencies (lack of reliable mass balance), the OECD 309 study can not be considered as valid based on the validity criteria of the OECD 309 guideline. Indeed, it is not possible to make any definitive conclusions on whether volatilization or mineralization occurs when the test substance leaves the test system. The OECD 308 showed sufficient recovery in both preliminary and definitive testing indicating a valid result according to the test guideline. Therefore, it is concluded that primary degradation of the test material will occur in the environment. Further assessment of PBT properties should therefore be based on the properties of the transformation products (2,2-(1,4-phenylene)di(propan-2-ol) and 2,2-(1,3-phenylene)di(propan-2-ol)) as indicated in Reach Guidance on PBT assessment: R11.23.2.1 Page 24 2017. If this data is not available, it should be generated. Therefore P assessment cannot be concluded.