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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Biodegradation in water: screening tests

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Administrative data

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Description of key information

Key value determined using EU Methods C4-C & C4-E, OECD guidelines 301B & 301D.

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

Additional information

The biodegradability of the test substance DUSANTOX® 86 was assessed using two different methods:

Method A - Carbon dioxide (CO2) evolution - Modified Sturm test

Method B - Closed bottle test (two-phase closed bottle test)


Based on the results of the biodegradability tests using the method of determination of evolved carbon dioxide(method A)and the closed bottle test (two-phase closed bottle test)(method B), the following biodegradability values were established for the test substance DUSANTOX® 86 after 28 days:

Dt = 29% (method A)

DThOD = 5% (method B)


The test substance DUSANTOX® 86 under the test conditions (method A) and (method B), cannot be considered to be readily biodegradable (D < 60%).