803219

Sulfo-EGS (ethylene glycol bis(sulfosuccinimidyl succinate))

• 同義詞: Ethylene glycolbis(sulfosuccinimidylsuccinate), bis(sulfosuccinimidyl) 4,4′-[(ethylene)dioxy]bis(4-oxobutanoate)
• 經驗公式（希爾表示法）: C₁₈H₁₈O₁₈N₂Na₂S₂
• CAS號碼: 167410-92-6
• 分子量：: 660.45
• MDL號碼: MFCD00054988
• 分類程式碼代碼: 12352200
• PubChem物質ID: 329768789
• NACRES: NA.22

屬性

• 形狀: powder
• 品質等級: 100
• 分子量: 660.45
• 反應適用性: reagent type: cross-linking reagent
• 儲存條件: desiccated
• 溶解度: water: soluble
• 運輸包裝: ambient
• 儲存溫度: −20°C
• InChI: 1S/C18H20N2O18S2.2Na/c21-11-7-9(39(29,30)31)17(27)19(11)37-15(25)3-1-13(23)35-5-6-36-14(24)2-4-16(26)38-20-12(22)8-10(18(20)28)40(32,33)34;;/h9-10H,1-8H2,(H,29,30,31)(H,32,33,34);;/q;2*+1/p-2
• InChI 密鑰: IYBKWXQWKPSYDT-UHFFFAOYSA-L

描述

一般說明

EGS is a water-insoluble, homobifunctional N-hydroxysuccinimide ester (NHS ester) and Sulfo-EGS is its water-soluble analog. The spacer arm contains two cleavable ester sites that may be broken with hydroxylamine, which yields two fragments with terminal amide bonds and the release of ethylene glycol. These reagents are often used for conjugating radiolabeled ligands to cell surface receptors. The water insoluble reagent EGS does not possess a charged group, is lipophilic and, therefore, membrane-permeable and useful for intracellular and intramembrane protein conjugation. EGS is first dissolved in DMSO or DMF and added to the aqueous reaction mixture at a final solvent concentration of 10-20%, to minimize detrimental affects to the protein.

特點和優勢

• Reactive groups: sulfo-NHS ester (both ends)
• Reactive towards: amino groups (primary amines)
• Water-soluble; compare to EGS
• Membrane-impermeable, allowing for cell surface labeling
• Crosslinks formed are reversible at pH 8.5 using hydroxylamine for 3 to 6 hours at 37°C
• Lactose dehydrogenase retained 60% of its activity after reversible crosslinking with EGS

注意

This product is sensitive to moisture. The vial is packaged in a resealable bag with a desiccant to reduce exposure to moisture. After cold storage, equilibrate the vial to room temperature before opening to reduce condensation inside the vial. Make fresh solutions. Storage of stock solutions is not recommended. After use, return the vial to the resealable bag. Close the bag and store the product at the recommended temperature.

安全資訊

• 象形圖: GHS07
• 訊號詞: Warning
• 危險聲明: H315,H319,H335
• 防範說明: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• 危險分類: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• 標靶器官: Respiratory system
• 儲存類別代碼: 11 - Combustible Solids
• 水污染物質分類（WGK）: WGK 3
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable