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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

Description of key information

The melting point of L-glutamine is 185 - 186 °C, the substance decomposes.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
185 °C

Additional information

Several handbooks provide melting points of L-glutamine between 185°C and 186°C. The substance decomposes when reaching the melting point. For the CSA the lowest value of 185°C is selected.