54457

HEPES

≥99.5% (titration), powder, for molecular biology, BioUltra

• Synonyme(s) : Acide 4-(2-hydroxyéthyl)pipérazine-1-éthanesulfonique, Acide N-(2-hydroxyéthyl)pipérazine-N′-(2-éthanesulfonique)
• Formule empirique (notation de Hill): C₈H₁₈N₂O₄S
• Numéro CAS: 7365-45-9
• Poids moléculaire : 238.30
• Numéro Beilstein : 883043
• Numéro CE : 230-907-9
• Numéro MDL: MFCD00006158
• Code UNSPSC : 12161700
• ID de substance PubChem : 57651473
• Nomenclature NACRES : NA.25

Propriétés

• product name: HEPES, BioUltra, for molecular biology, ≥99.5% (T)
• Qualité: for molecular biology
• Niveau de qualité: 200
• Gamme de produits: BioUltra
• Pureté: ≥99.5% (T)
• Forme: powder
• Impuretés: DNases, none detected; RNases, none detected; insoluble matter, passes filter test; phosphatases, none detected; proteases, none detected
• Résidus de calcination: ≤0.1% (as SO₄)
• Perte: ≤0.5% loss on drying, 110 °C
• pH: 5.0-6.5 (25 °C, 1 M in H₂O)
• Plage de pH utile: 6.8-8.2
• pKa (25 °C): 7.5
• Solubilité: H₂O: 1 M at 20 °C, clear, colorless
• Traces d'anions: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤50 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; Na: ≤50 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Sr: ≤5 mg/kg; Zn: ≤5 mg/kg
• λ: 1 M in H₂O
• Absorption UV: λ: 260 nm A_max: 0.045; λ: 280 nm A_max: 0.035
• Chaîne SMILES: OCCN1CCN(CC1)CCS(O)(=O)=O
• InChI: 1S/C8H18N2O4S/c11-7-5-9-1-3-10(4-2-9)6-8-15(12,13)14/h11H,1-8H2,(H,12,13,14)
• Clé InChI: JKMHFZQWWAIEOD-UHFFFAOYSA-N

Description

Description générale

HEPES has been described as one of the best all-purpose buffers available for biological research. At biological pH, the molecule is zwitterionic, and is effective as a buffer at pH 6.8 to 8.2. HEPES has been used in a wide variety of applications, including tissue culture. It is commonly used to buffer cell culture media in air. HEPES finds its usage in in vitro experiments on Mg.

Application

HEPES has been used as a component of:

• DMEM (Dulbecco′s modified Eagle′s medium) used for the cultivation of CHO-GPR40?cells
• RNA buffer (for gel-filtration chromatography) and transcription buffer (for transcription reaction)
• Recapture solution to re-capture RNA exosomes from the glycerol gradient
• ExoI and ExoII extraction solution as well as light and heavy gradient solution for gradient centrifugation
• 2X HBS buffer that is used in transfection process for the production of recombinant lentivectors

Autres remarques

Easily compare specifications for HEPES products with the HEPES specification table.

3′-Terminal labeling of RNA with T₄ RNA ligase; Isolation and analysis of nuclear RNA - component of reaction buffer, prehybridization buffer, hybridization buffer.

Informations sur la sécurité

• Code de la classe de stockage: 13 - Non 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)