DBCO-PEG-NH2,DBCO-PEG-Amine
作者:DBCO-PEG-NH2,DBCO-PEG-Amine 发布时间:2022-08-01 11:15:17
次浏览
名称
货号
英文名、缩写
分子量
规格
价格
DBCO-PEG-NH2
PS2-NDB-5K
DBCO-PEG-NH2
5000
0.1g、0.5g
现询
DBCO-PEG-NH2
PS2-NDB-2K
DBCO-PEG-NH2
2000
0.1g、0.5g
现询
DBCO-PEG-NH2
PS2-NDB-3K
DBCO-PEG-NH2
3400
0.1g、0.5g
现询
DBCO-PEG-NH2
PS2-NDB-1K
DBCO-PEG-NH2
1000
0.1g、0.5g
现询
DBCO-PEG-NH2
PS2-NDB-10K
DBCO-PEG-NH2
10000
0.1g、0.5g
现询
(备注:非常规分子量:400、600。精确聚合度的小分子定制。)
结构式:
基本信息:
中文名称:Dibenzocyclooctyne-聚乙二醇-氨基 (DBCO-PEG-NH2)
别名:DBCO-PEG-NH2
英文名称:DBCO-PEG-NH2,DBCO-PEG-Amine
CAS:-
分子量:400、600、1K、2K、3.4K、4K、5K、10K
纯度:95%以上
应用简介:
DBCO (dibenzocyclooctyne) PEG amine is aheterobifunctional reactive PEG derivative that can go Click Chemistry reactionwithout a need of any metal catalysts. The strain-promoted 1,3-dipolarcycloaddition of cyclooctynes and azides, also termed as the Cu-free clickreaction, is a bioorthogonal reaction that enables the conjugation of twomolecules in aqueous solution. DBCO PEG derivatives possess fast kinetics andstability in aqueous buffer. DBCO reagents can be used to label azide-modifiedbiomolecules spontaneously without the need for toxic Cu catalysts. Aminegroups, on the other hand, can react with a variety of functional groups suchas COOH, NHS, aldehyde, etc.
Copper-freeClick reaction procedures:
Preparethe azide-containing reagents in reaction buffer.
Add PEGDBCO reagents to azide containing reagents. Add 1 mol equivalent of limitingreagent to 1.5~3.0 mol equivalents of abundance reagent.
Incubatethe reaction at room temperature for 2~4 hours or 2~12 hours at 4 0C.
Purifyconjugates either by dialysis or size-exclusion chromatograph.
物理性质:
状态:淡黄色到白色固体,或者半固体,取决于分子量。
溶解性:溶于水,氯仿,DMSO等溶剂。
保持条件:-20℃长期保存,避光,干燥。
注意事项:取用一定要干燥,避免频繁的溶解和冻干。
反应性:DBCO于含有N3基团的反应。NH2可以和NHS,COOH,CHO等等。
技术指标:
纯度(PEG):95%以上
取代率(DBCO):90%以上
取代率(NH2):95%以上
分散系数(PDI):小于等于1.05
分析:COA、GPC、NMR、MALDI-TOF