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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Classification & Labelling & PBT assessment

PBT assessment

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Administrative data

PBT assessment: overall result

m-Tetramethylxylene diisocyanate (boundary composition)
Type of composition:
boundary composition of the substance
State / form:
Reference substance:
m-Tetramethylxylene diisocyanate (boundary composition)
PBT status:
the substance is not PBT / vPvB

m-TMXDI fulfils the criteria for ‘T’ defined by the REACH legislation. However, it undergoes rapid hydrolysis in presence of moisture (not ‘P’ and not ‘vP’) and has a low potential for bioaccumulation (not ‘B’ and not ‘vB’). In conclusion, m-TMXDI is not considered to be a PBT or a vPvB substance.