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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Description of key information

Additional information

Several studies on the biodegradability in water are available on similar substances within the Stilbene Fluorescent Whitening Agents category (see Justification Category Report attached to the section 13). For all tested members of the category no biodegradation was observed, neither readily, neither inherently. As a consequence, CAS 4193 -55 -9 can be considered as neither readily nor inherently biodegradable.

Anaerobic degradation can happens, but it is not a main degradation pathway and results seem in disagreements.

A field study at a full-scale STP on the analogous substance CAS 16090-02-1 (Poiger, 1994) gave no evidence of biodegradation when the mass flow was monitored. It is assumed that the test substance would be non biodegradable in soil and sediment either.