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Diss Factsheets

Environmental fate & pathways

Biodegradation in soil

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Administrative data

Link to relevant study record(s)

Description of key information

No data are available on degradation rates in soil; therefore, the substance is regarded as P/vP from a precautionary point of view.

Degradation products were predicted using a QSAR model. All predicted transformation products were considered as readily biodegradable. Furthermore,

all 16 predicted metabolites have log Kow values clearly below the trigger value of 4.5 (range: -1.7 to 0.23). Therefore, it can be concluded that none of these degradation products is potentially PBT/vPvB.

Key value for chemical safety assessment

Additional information



 In Article 13 of Regulation (EC) No 1907/2006, it is laid down that information on intrinsic properties of substances may be generated by means other than tests, provided that the conditions set out in Annex XI (of the same Regulation) are met.

According to Annex XI of Regulation (EC) No 1907/2006 (Q)SAR results can be used if (1) the scientific validity of the (Q)SAR model has been established, (2) the substance falls within the applicability domain of the (Q)SAR model, (3) the results are adequate for the purpose of classification and labeling and/or risk assessment and (4) adequate and reliable documentation of the applied method is provided.

The criteria listed in Annex XI of Regulation (EC) No 1907/2006 are considered to be adequately fulfilled and, therefore, the endpoint(s) sufficiently covered and suitable for risk assessment.


The degradation products were assessed using the QSAR model CATALOGIC 301C v11.16 (OASIS Catalogic v5.14.1.5).

CATALOGIC 301C v11.16 (OASIS Catalogic v5.14.1.5) predicted 16 metabolites, identifying two metabolites as relevant degradation products in terms of PBT/vPvB assessment, with an estimated quantity of ≥ 0.1% (for details see ‘Attached background material’ of the respective Endpoint Study Record).

All metabolites have a log Kow ≤ 3, thereby not fulfilling the screening criteria for bioaccumulation (B/vB) as laid down in Section 3.1 of REACH Annex XIII. In conclusion, all (relevant) predicted metabolites are not expected to significantly accumulate.


Based on modeled data relevant degradation products present in concentration of ≥ 0.1% (equivalent to quantity setting in OASIS CATALOGIC: ≥0.001 [mol/mol parent]) do neither fulfill the PBT criteria (not PBT) nor the vPvB criteria (not vPvB).