391333

HEPES sodium salt

ULTROL^® Grade, ≥99% dry basis (titration), zwitterionic N-substituted aminosulfonic acid buffer

• Sinônimo(s): HEPES, Sodium Salt, ULTROL^® Grade, N-2-Hydroxyethylpiperazine-Nʹ-2-ethanesulfonic Acid, Na
• Fórmula empírica (Notação de Hill): C₈H₁₇N₂O₄S · Na
• Número CAS: 75277-39-3
• Peso molecular: 260.29
• Número MDL: MFCD00036463
• Código UNSPSC: 12161704
• NACRES: NA.25

Propriedades

• Nível de qualidade: 100
• Ensaio: ≥99% dry basis (titration)
• Formulário: solid
• fabricante/nome comercial: Calbiochem^®
• condição de armazenamento: OK to freeze; desiccated (hygroscopic)
• cor: white
• pKa (20 °C): 7.6
• solubilidade: water: 1.0 M
• traços de ânion: chloride (Cl^-): <0.01%; sulfate (SO₄^2-): <0.05%
• traços de cátion: heavy metals: <1 ppm
• Condições de expedição: ambient
• temperatura de armazenamento: 15-25°C
• cadeia de caracteres SMILES: [Na+].[S](=O)(=O)([O-])CCN1CCN(CC1)CCO
• InChI: 1S/C8H18N2O4S.Na/c11-7-5-9-1-3-10(4-2-9)6-8-15(12,13)14;/h11H,1-8H2,(H,12,13,14);/q;+1/p-1
• chave InChI: RDZTWEVXRGYCFV-UHFFFAOYSA-M

Descrição

Descrição geral

A zwitterionic N-substituted aminosulfonic acid buffer(Absorbance: <0.10 at 260 nm, 1.0 mM, H₂O). Active in the pH range of 6.0 to 8.5. Has a pK_a of 7.6 at 20°C.

A zwitterionic N-substituted aminosulfonic acid buffer. Useful in the pH 6.8-8.2 range. Has a pK_a of 7.55 at 25°C.

Absorbance (1.0 mM, H₂O, 260 nm):<0.10.

Aplicação

• 3,6-O-[N-(2-Aminoethyl)-acetamide-yl]-chitosan exerts antibacterial activity by a membrane damage mechanism.: This study explores the antibacterial mechanisms of a chitosan derivative, which could be related to the buffering capabilities of HEPES in maintaining the stability and exposure of functional groups necessary for antibacterial activity (Yan et al., 2016).

Advertência

Toxicity: Standard Handling (A)

Informações legais

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

ULTROL is a registered trademark of Merck KGaA, Darmstadt, Germany

Informações de segurança

• Código de classe de armazenamento: 11 - Combustible Solids
• Classe de risco de água (WGK): WGK 3
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable