Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

The environmental fate and the behaviour of 1H-Benzotriazole was investigated by experimental studies, in silico calculations as well as computational modelling. Besides the conduction of studies in line with the requirements of the Test Methods Regulation and/or OECD guidelines, additional information from the public domain were collected and evaluated.


In total, the substance shows a complex behaviour in the environment. This is based to its high stability regarding most degradation processes as well as the ionisable character of the molecule and its Dipole moment. Depending on the environmental conditions either the non-charged molecule (dominant due to high dissociation constant) or the anionic form pervails which has significant influence on the photochemical and sorption behaviour of the substance.

Additional information