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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Adsorption/desorption: The log partition coefficient of the test substance was predicted to be < 3.0. Moreover, ethyl (S)-lactate is readily biodegradable. Therefore, the test substance is considered to have low potential for absorption and no further testing is required.

Henry's Law constant: Simple calculation of vapour pressure divided by aqueous solubility gives a Henry's Law constant of 0.26 Pa m³/mol for ethyl (S)-lactate.

Distribution modelling: Ethyl (S)-lactate will be mainly distributed to air (92 %).

Additional information

Adsorption/desorption: Waiver. In accordance with column 2 of REACH Annexes XIII, the adsorption/desorption study (required in section 9.3.1 and 9.3.3) do not need to be conducted if, based on the physicochemical properties, the substance can be expected to have a low potential for adsorption (e.g. the substance has a low octanol-water partition coefficient and decomposed rapidly). The log partition coefficient of the substance was predicted to be < 3.0, and ethyl (S)-lactate is readily biodegradable. Therefore, ethyl (S)-lactate is considered to have low potential for absorption and no further testing is required.


Henry's Law constant: Simple calculation of vapour pressure divided by aqueous solubility gives a Henry's Law constant of 0.26 Pa m³/mol for ethyl (S)-lactate.


Distribution modelling: Ethyl (S)-lactate will be mainly distributed to air (92 %).