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In accordance with REACH Annex VIII column 2, the study does not need to be conducted if the substance is readily biodegradable or highly insoluble in water.

Biodegradation in water:

From the degradability results determined over a period of 28 days based on the BOD (average 1% degradation) and the residual concentration of the test substance (average 1 % degradation), it is concluded that the test substance is not readily biodegradable. No transformation product was generated under the conditions of this test.

Biodegradation in water, sediment and soil:

According to the REACh Annex XI, Section 1, the performance of simulation tests covering the aquatic,sediment and soil compartment is scientifically not necessary as it would not provide additional information for the hazard, risk and persistency assessment. As the substance neither fulfills the B, nor the T criterion, no further information is required for the PBT assessment (Guidance Document R.7b, ECHA, 2008; p198).


The concentration of the test substance in fish ranged from 0.37 to 1.08 µg/g (w/w) and the bioconcentration (BCF) was 2 to 5. On the basis of the BCF obtained, it is concluded that the bioaccumulation potential of the test substance in fish is low under the test condition.


An adsorption coefficient (log Koc) of 6.2 was determined at pH 6, which refers to 25 °C.

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