53319

L-Histidine

BioUltra, ≥99.5% (NT)

• Synonym(s): (S)-2-Amino-3-(4-imidazolyl)propionic acid, NSC 137773
• Empirical Formula (Hill Notation): C₆H₉N₃O₂
• CAS Number: 71-00-1
• Molecular Weight: 155.15
• Beilstein/REAXYS Number: 84088
• EC Number: 200-745-3
• MDL number: MFCD00064315
• UNSPSC Code: 12352209
• eCl@ss: 32160406
• PubChem Substance ID: 57651378

Properties

• product line: BioUltra
• Quality Level: 200
• assay: ≥99.5% (NT)
• form: powder or crystals
• optical activity: [α]20/D −39±1°, c = 2% in H₂O
• impurities: insoluble matter, passes filter test; ≤0.5% foreign amino acids
• ign. residue: ≤0.1% (as SO₄)
• loss: ≤0.5% loss on drying, 110 °C
• color: white
• pH: 7.0-8.0 (25 °C, 0.1 M in H₂O)
• mp: 282 °C (dec.) (lit.); ~285 °C (dec.)
• solubility: H₂O: 0.1 M at 20 °C, clear, colorless
• anion traces: chloride (Cl^-): ≤100 mg/kg; sulfate (SO₄^2-): ≤100 mg/kg
• cation traces: Al: ≤5 mg/kg; As: ≤0.1 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤10 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; K: ≤50 mg/kg; Li: ≤5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; NH₄⁺: ≤500 mg/kg; Na: ≤50 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Sr: ≤5 mg/kg; Zn: ≤5 mg/kg
• λ: 0.1 M in H₂O
• UV absorption: λ: 260 nm A_max: 0.05; λ: 280 nm A_max: 0.05
• SMILES string: N[C@@H](Cc1c[nH]cn1)C(O)=O
• application(s): detection
• InChI: 1S/C6H9N3O2/c7-5(6(10)11)1-4-2-8-3-9-4/h2-3,5H,1,7H2,(H,8,9)(H,10,11)/t5-/m0/s1
• InChI key: HNDVDQJCIGZPNO-YFKPBYRVSA-N
• Gene Information: human ... CA1(759) , CA2(760)

Description

Application

L-Histidine has been used for characterization of ZnO nanorod in an attempt to develop a technique for the ultra-low level detection of l-histidine.

Biochem/physiol Actions

Precursor of histamine by action of histidine decarboxylase.

L-Histidine is involved in the one-carbon unit metabolism. It is associated with protein methylation. L-Histidine is a part of hemoglobin structure and function. L-Histidine is a component of dipeptides with antioxidative property. Histidine serves as a precursor for the formation of histamine, which is associated with allergic responses. Urocanic acid, an immune response modulator in skin is also biosynthesised from histidine.

Other Notes

Amino acid spacing in isotachophoresis on polyacrylamide gels - a critical evaluation; Prevents circular DNA strand cleavage in a xanthine-xanthine oxidase system; Growth requirement of various microorganisms.

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)