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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Additional information


In accordance with REACH Annex VIII column 2, the stability of γ-decalactone and more particularly an hydrolysis study does not need to be conducted as the substance is readily biodegradable.


One valid key study is available to assess the biodegradation of γ-decalactone. This study was performed in an aerobic aqueous medium, according to OECD Guideline 301F. γ-decalactone attained 82% degradation after 28 days and meeting the 10-day window.

In conclusion, γ-decalactone is considered readily biodegradable.


Due to the low octanol-water partition coefficient (at 3.0), γ-decalactone has a low potential for bioaccumulation. In accordance with column 2 of REACH Annex IX, the bioaccumulation in aquatic species study does not need to be conducted.

Transport and distribution:

γ-decalactone is readily biodegradable and has a low potential for adsorption due to a low octanol-water partition coefficient (at 3.0). In accordance with REACH Annex VIII column 2, an adsorption/desorption study does not need to be conducted.