391333

HEPES sodium salt

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

• 別名: HEPES, Sodium Salt, ULTROL^® Grade, N-2-Hydroxyethylpiperazine-Nʹ-2-ethanesulfonic Acid, Na
• 実験式（ヒル表記法）: C₈H₁₇N₂O₄S · Na
• CAS番号: 75277-39-3
• 分子量: 260.29
• MDL番号: MFCD00036463
• UNSPSCコード: 12161704
• NACRES: NA.25

特性

• 品質水準: 100
• アッセイ: ≥99% dry basis (titration)
• フォーム: solid
• メーカー／製品名: Calbiochem^®
• 保管条件: OK to freeze; desiccated (hygroscopic)
• 色: white
• pKa (20 °C): 7.6
• 溶解性: water: 1.0 M
• 微量陰イオン: chloride (Cl^-): <0.01%; sulfate (SO₄^2-): <0.05%
• 微量陽イオン: heavy metals: <1 ppm
• 輸送温度: ambient
• 保管温度: 15-25°C
• SMILES記法: [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
• InChI Key: RDZTWEVXRGYCFV-UHFFFAOYSA-M

詳細

詳細

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.

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

アプリケーション

• 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).

警告

Toxicity: Standard Handling (A)

法的情報

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

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

安全性情報

• 保管分類コード: 11 - Combustible Solids
• WGK: WGK 3
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable