Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 200-795-6 | CAS number: 73-22-3
Boiling point
Administrative data
Link to relevant study record(s)
Description of key information
Not boiling poiint could be observed because the substance decomposes shortly after the melting process at 288 °C.
Key value for chemical safety assessment
Additional information
According to REACH Regulation (Annex VII, 7.3, column 2), the study on the boiling point does not need to be done if the substance decomposes before the boiling point is reached. L-Tryptophan decomposes at 288°C as could be observed in the determination of the melting point.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
