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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Classification & Labelling & PBT assessment

PBT assessment

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Administrative data

PBT assessment: overall result

PBT status:
the substance is not PBT / vPvB

The substance is readily biodegradable and has a logKow of -1.06. Further, based on the reliable results on short-term toxicity of L-tryptophan to aquatic organisms, the lowest L(E)C50 were determined to be significantly > 1 mg/L and the substance is not classified as dangerous accoding to Directive 67/548/EEC as well as to Regulation EC 1272/2008.

Therefroe L-tryptophan is not a PBT or vPvB substance.