Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

The direct and indirect exposure of the aquatic compartment is unlikely because HDI Uretdion hydrolysis completely in water within far less than 24 hours at environmental relevant concentrations. 

For this reason, an experimental study is not useful, and calculated values were used. Bioconcentration factors (BCF) of 457 and 143 L/kg wet-wt for the main component HDI Uretdion and its corresponding diamine were obtained (Currenta, 2014e). Also the corresponding diamine of HDI Uretdion with a bioconcentration factor of 143 L/kg wet-wt does not have high bioaccumulation potential (Currenta, 2014f).