391333

HEPES sodium salt

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

• 동의어(들): HEPES, Sodium Salt, ULTROL^® Grade, N-2-Hydroxyethylpiperazine-Nʹ-2-ethanesulfonic Acid, Na
• 실험식(Hill 표기법): C₈H₁₇N₂O₄S · Na
• CAS Number: 75277-39-3
• Molecular Weight: 260.29
• UNSPSC 코드: 12161704
• NACRES: NA.25

속성

• Quality Level: 100
• 분석: ≥99% dry basis (titration)
• 형태: solid
• 제조업체/상표: Calbiochem^®
• 저장 조건: OK to freeze; desiccated (hygroscopic)
• 색상: white
• pKa(20 °C): 7.6
• solubility: water: 1.0 M
• 음이온 미량물: chloride (Cl^-): <0.01%; sulfate (SO₄^2-): <0.05%
• 양이온 미량물: heavy metals: <1 ppm
• 배송 상태: ambient
• 저장 온도: 15-25°C
• 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

설명

일반 설명

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.

애플리케이션

• 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).

경고

Toxicity: Standard Handling (A)

법적 정보

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

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

안전성 정보

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable