Registration Dossier

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

- Biodegradation in water: screening test

A study was performed according to the OECD guideline 301 F: 0 % biodegradation reached after 28d
N,N’-Diphenyl Thiourea is not readily biodegradable.


- Simuation tests (in water, in sediment, in soil)

In accordance with column 2 of REACH Annex IX, the biodegradation studies (required under sections 9.2) do not need to be conducted. First, the substance has a low potential for bioaccumulation. Therefore, no further degradation study is required in the framework of the PBT/vPvB assessment, as indicated in ECHA's guidance on information requirements and chemical safety assessment, chapter R.11 (v3.0, June 2017, p.20): "non indication of P or B properties" => "the assessment stops". Second, the Chemical Safety Assessment does not indicate any risk for any environmental compartment in any scenario (RCRs < 1). Therefore, in accordance with column 2 of Annex IX of REACH regulation EC 1907/2006, no degradation simulation study is needed.