CAS: 71-00-1 EC No: 200-745-3 MDL No: MFCD00064315 RTECS: MS3070000 Solid Molecular Formula: C₆H₉N₃O₂ MW: 155.15 Melting Point: 282° (decomposes) Optical Rotation: [α]20/D -39±1°, c = 2% in water

L-histidine is an essential amino acid with a basic side chain, and is hydrophilic in character. It contains an imidazole group in the side chain. Histidine is biosynthesized from ATP, 5-phosphoribosyl-1-pyrophosphate (PRPP), and glutamine. In turn, histidine is degraded to glutamate by histidase,…