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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

1,3-di-o-tolylguanidine is not considered readily biodegradable.

1% biodegradation after 28 days.

Study performed in accordance with:
- OECD testing guideline 301 and
- GLP requirements


Additional information

The ready biodegradability of 1,3-di-o-tolylguanidine was evaluated in a study performed in accordance with OECD testing guideline 301 C and GLP requirements.

The maximum level of biodegradation was 1% in 28 days. Therefore, according to these results, 1,3-di-o-tolylguanidine is not considered readily biodegradable.

In accordance with ECHA's guidance R.11, the biodegradation in water, soil and/or sediments study do not need to be conducted as the PBT/vPvB assessment is complete (1,3-di-o-tolylguanidine is not B based on a low n-octenol water partition coefficient).