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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Additional information


LAS-IPA is readily biodegradable. No studies on degradation of LAS-IPA in water-sediment or in soil are available. In accordance with column 2 of REACH Annex IX, the water and sediment simulation test and biodegradation test in soil do not need to be conducted. Supporting studies are also available for read-across substances, such as LAS-Na and IPA, where the biodegradation of LAS-IPA may be further described by the biodegradation of LAS-Na and IPA according to the read-across statement in which full dissociation of the LAS-IPA in water is supported. Both read-across substances are also readily biodegradable. It is concluded that indirect exposure to the soil compartment from LAS-IPA via sludge application is unlikely.



Biodegradation of the read-across substance LAS-Na in sediment is rapid.Mineralization (14CO2 production) was best described by a First Order Model (r2 > 0.99), indicating that parent and metabolites were equally bioavailable to undergo mineralization. The rate constant for mineralization was 0.06 day-1. Half-life in sludge-amended soil after application of sludge of LAS-Na was >7 to <22 days based on recovered LAS-Na.