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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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


In accordance with REACH Annex XI, the "Hydrolysis as a function of pH" does not need to be conducted as the test is scientifically unjustified respective technically not feasable. The guanidine ion is expected to have such a long hydrolysis half-life at environmentally relevant pH that the measurement is not feasable. This is concluded from abiotic biodegradation control with river water (Mitchel, Chemosphere, 1987).


Guanidine Thiocyanate was proven to be inherently biodegradable in an OECD guideline 302B study.

Additional information