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Melting point / freezing point

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Description of key information

258 °C at ambient pressure

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
258 °C

Additional information

Based on the experimental results according to OECD Guideline 102 and EU Method A.1 (differential scanning calorimetry) it is concluded that the substance 2-methyl-N-(4-sulfamoylphenyl) prop-2-enamide (SPM-N) decomposes immediately after melting.