53319

L-Histidine

≥99.5% (NT), BioUltra

• Synonyme(s) : Acide (S)-2-amino-3-(4-imidazolyl)propionique, NSC 137773
• Formule empirique (notation de Hill): C₆H₉N₃O₂
• Numéro CAS: 71-00-1
• Poids moléculaire : 155.15
• Numéro Beilstein : 84088
• Numéro CE : 200-745-3
• Numéro MDL: MFCD00064315
• Code UNSPSC : 12352209
• eCl@ss : 32160406
• ID de substance PubChem : 57651378
• Nomenclature NACRES : NA.26

Propriétés

• product name: L-Histidine, BioUltra, ≥99.5% (NT)
• Gamme de produits: BioUltra
• Niveau de qualité: 200
• Pureté: ≥99.5% (NT)
• Forme: powder or crystals
• Activité optique: [α]20/D −39±1°, c = 2% in H₂O
• Impuretés: insoluble matter, passes filter test; ≤0.5% foreign amino acids
• Résidus de calcination: ≤0.1% (as SO₄)
• Perte: ≤0.5% loss on drying, 110 °C
• Couleur: white
• pH: 7.0-8.0 (25 °C, 0.1 M in H₂O)
• Pf: 282 °C (dec.) (lit.); ~285 °C (dec.)
• Solubilité: H₂O: 0.1 M at 20 °C, clear, colorless
• Traces d'anions: chloride (Cl^-): ≤100 mg/kg; sulfate (SO₄^2-): ≤100 mg/kg
• Traces de cations: 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
• Absorption UV: λ: 260 nm A_max: 0.05; λ: 280 nm A_max: 0.05
• Chaîne SMILES: 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
• Clé InChI: HNDVDQJCIGZPNO-YFKPBYRVSA-N
• Informations sur le gène: 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.

Actions biochimiques/physiologiques

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.

Precursor of histamine by action of histidine decarboxylase.

Précurseur de l′histamine par l′action de l′histidine décarboxylase.

Autres remarques

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.

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: Eyeshields, Gloves, type N95 (US)