Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

The information available for the biodegradation of dapsone (4,4'-DDS) is limited to an OECD 301D ready biodegradation study. Dapsone showed no degradation within the 28 day timeframe and therefore cannot be considered biodegradable based on the information available.

Additional information