Free release

4998-57-6 dl-histidine, free base

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Product Name DL-Histidine, Free Base
CAS No. 4998-57-6
Synonyms histidine, homopolymer; hydrogen histidinate; Polyhistidine; DL-Histidine; H-DL-His-OH
InChI InChI=1/C6H9N3O2/c7-5(6(10)11)1-4-2-8-3-9-4/h2-3,5H,1,7H2,(H,8,9)(H,10,11)
Molecular Formula C6H9N3O2
Molecular Weight 155.1546
Density 1.423g/cm3
Melting point 280-290℃ (dec.)
Boiling point 458.9°C at 760 mmHg
Flash point 231.3°C
Refractive index 1.614
Safety S22:; S24/25:;