P8203

PIPES

BioXtra, ≥99% (titration)

• 別名: 1,4-ピペラジンジエタンスルホン酸, ピペラジン-1,4-ビス(2-エタンスルホン酸), ピペラジン-N,N′-ビス(2-エタンスルホン酸)
• 実験式（ヒル表記法）: C₈H₁₈N₂O₆S₂
• CAS番号: 5625-37-6
• 分子量: 302.37
• Beilstein: 817713
• EC Number: 227-057-6
• MDL番号: MFCD00006159
• UNSPSCコード: 12161700
• PubChem Substance ID: 24898917
• NACRES: NA.25

特性

• 製品種目: BioXtra
• アッセイ: ≥99% (titration)
• 形状: powder
• 不純物: Insoluble matter, passes filter test
• 強熱残分(900 °C): ≤0.5% (as SO₄)
• 損失: ≤0.5% loss on drying, 110°C
• 有効pH範囲: 6.1-7.5
• pKa (25 °C): 6.8
• mp: >300 °C (lit.)
• 溶解性: 1 M NaOH: 0.5 M at 20 °C, clear, colorless
• 微量陰イオン: chloride (Cl^-): ≤0.2%
• 微量陽イオン: Al: ≤0.005%; Ba: ≤0.0005%; Bi: ≤0.0005%; Ca: ≤0.005%; Cd: ≤0.0005%; Co: ≤0.0005%; Cr: ≤0.0005%; Cu: ≤0.0005%; Fe: ≤0.0005%; K: ≤0.005%; Li: ≤0.0005%; Mg: ≤0.0005%; Mn: ≤0.0005%; Mo: ≤0.0005%; Na: ≤0.1%; Ni: ≤0.0005%; Pb: ≤0.0005%; Sr: ≤0.0005%; Zn: ≤0.0005%
• 吸収: ≤0.1 at 260 in 1 M NaOH at 0.5 M; ≤0.1 at 280 in 1 M NaOH at 0.5 M
• アプリケーション: diagnostic assay manufacturing
• SMILES記法: OS(=O)(=O)CCN1CCN(CC1)CCS(O)(=O)=O
• InChI: 1S/C8H18N2O6S2/c11-17(12,13)7-5-9-1-2-10(4-3-9)6-8-18(14,15)16/h1-8H2,(H,11,12,13)(H,14,15,16)
• InChI Key: IHPYMWDTONKSCO-UHFFFAOYSA-N

詳細

詳細

PIPES is a member of the ethanesulfonic acid buffer series, first introduced by Good et al., developed to meet certain criteria: midrange pKa, maximum water solubility and minimum solubility in all other solvents, minimal salt effects, minimal change in pKa with temperature, chemically and enzymatically stable, minimal absorption in visible or UV spectral range and easily synthesized. Since its pKa at 37 °C is near physiological pH, PIPES has applications in cell culture work.

アプリケーション

Protocols have been reported on the use of PIPES for separation of glyoxylated RNA in agarose gels, nuclease S1 mapping of RNA, and in ribonuclease protection assay protocols. PIPES has been used as a buffer in glutaraldehyde fixation of tissue samples.^,
PIPES has been utilized in protein crystallization.^, The use of PIPES in the reconstitution of dissociated tubulin
α and β subunits after their resolution on immunoadsorbent gels has been described. PIPES has been recommended for use in buffers for the in vitro study of caspases 3, 6, 7, and 8.
A published study demonstrated the usefulness of PIPES as a non-metal ion complexing buffer in such applications as protein assays. PIPES has been used in cell culture for such applications as the engineering of a thermostable mutant membrane protein in Escherichia coli.

品質

Trace elemental analyses have been performed on the BioXtra PIPES; Certificate of Analysis provides lot-specific results. BioXtra PIPES is for applications which require tight control of elemental content.

関連事項

Sigma-Aldrich offers BioPerformance Certified cell culture-tested PIPES (Product No. P1851) as well as several different salts for convenience in buffer preparation.

調製ノート

Buffers can be prepared by adding a solution of base to PIPES free acid to titrate to the appropriate pH, or by mixing equimolar solutions of the monosodium salt and the disodium salt to titrate to the appropriate pH.

安全性情報

• 保管分類コード: 13 - Non Combustible Solids
• WGK: WGK 3
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable
• 個人用保護具 (PPE): Eyeshields, Gloves, type N95 (US)