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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Study reports have been available for the ready biodegradability test and hydrolysis as a function of pH. The results are summarized as below:


The ready biodegradability test was performed according to the OECD Test Method 301 A, Modified AFNOR-Test. The biodegradation (28 d) of FAT-20'306/B was 0 %. This showed that the test substance is not readily biodegradable. This finding is supported by determination of the BOD5/COD-ratio which was found to be 0 %, too. However, when tested for inherent biodegradability in a Zahn-Wellens test according to OECD method 302B, the substance showed a DOC removal of 44 and 51 % within 28 and 33 days, respectively. Thus, inherent biodegradability was found although the test method criterion was not met. In conclusion, the test substance is not readily biodegradable but shows inherent biodegradability, not fulfilling specific criteria.


The hydrolysis as a function of pH was performed according to the OECD guideline 111. The result showed the test substance is stable at pH 4, 7, 9 and 50 °C. It has a half-life time longer than one year at pH 4.0, 7.0, 9.0 and 25 °C. Thus, significant abiotic degradation in the environment is not expected.


In accordance with Column 2 of REACH, Annexes IX a test for bioaccumulation does not need to be conducted if the substance has a low potential for bioaccumulation, due to the low logKOW (logKOW <3). Thus, no additional test was required to determine bioaccumulation in fish. 


In accordance with Column 2 of REACH, Annex VIII a test to determine adsorption/desorption does not need to be conducted if the substance has a low potential for adsorption due to the logKOW <3. Thus, no additional test was required for adsorption/desorption and the substance is considered being mobile in the environment.