长沙分类信息网-长沙新闻网

二苯并环辛烯PEG羧基,DBCO-PEG-COOH,修饰性PEG产品,芃硕生物专业供应。

2018-7-26 5:00:15发布37次查看
分类修饰性PEG品牌Ponsure
用途范围修饰性PEG级别优级纯GR
含量95%产品规格定制
CAS-特色服务-

二苯并环辛烯peg羧基 ,dbco-peg-cooh,产品芃硕生物专业供应。
名称
货号
英文名、缩写
分子量
规格
dbco-peg-cooh
ps2-cmdb-5k
dbco-peg-cooh
5000
0.1g、0.5g
dbco-peg-cooh
ps2-cmdb-2k
dbco-peg-cooh
2000
0.1g、0.5g
dbco-peg-cooh
ps2-cmdb-3k
dbco-peg-cooh
3400
0.1g、0.5g
dbco-peg-cooh
ps2-cmdb-1k
dbco-peg-cooh
1000
0.1g、0.5g
dbco-peg-cooh
ps2-cmdb-10k
dbco-peg-cooh
10000
0.1g、0.5g
(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:二苯并环辛烯-聚乙二醇-羧基 (dbco-peg-cooh)
别名:dbco-peg-cooh
英文名称:dbco-peg-cooh,dbco-peg-acid
cas:-
分子量:400、600、1k、2k、3.4k、4k、5k、10k
纯度:95%以上
二苯并环辛烯peg羧基 ,dbco-peg-cooh,产品芃硕生物专业供应。
应用简介:
ponsure’dbco (dibenzocyclooctyne) peg acid, dbco-peg-cooh, is a heterobifunctional reactive peg derivative that can go click chemistry reaction without a need of any metal catalysts. the strain-promoted 1,3-dipolar cycloaddition of cyclooctynes and azides, also termed as the cu-free click reaction, is a bioorthogonal reaction that enables the conjugation of two molecules in aqueous solution. dbco peg derivatives possess fast kinetics and stability in aqueous buffer. dbco reagents can be used to label azide-modified biomolecules spontaneously without the need for toxic cu catalysts. carboxylic acid group, on the other hand, can be activated to react with amines, hydroxy and other functional groups.
copper-free click reaction procedures:
prepare the azide-containing reagents in reaction buffer.
add dbco reagents to azide containing reagents. add 1 mol equivalent of limiting reagent to 1.5~3.0 mol equivalents of abundance reagent.
incubate the reaction at room temperature for 2~4 hours or 2~12 hours at 4℃.
purify conjugates 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,chcl3,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与含有n3基团的反应。cooh可以和nh2、oh等反应。
二苯并环辛烯peg羧基 ,dbco-peg-cooh,产品芃硕生物专业供应。
技术指标:
纯度(peg):95%以上
取代率(dbco):90%以上
取代率(cooh):95%以上
分散系数(pdi):小于等于1.05
分析:coa、gpc、nmr、maldi-tof
相关产品推荐:
mpeg-dbco
dbco-peg-nh2
dbco-peg-cooh
dbco-peg-nhs
dbco-peg-sh
dbco-peg-acrl
dbco-peg-aca
dbco-peg-dspe
dbco-peg-fitc
dbco-peg-rb
dbco-peg-mal
dbco-peg-fa
dbco-peg-biotin
dbco-peg-oh
dbco-peg-opss
la-peg-dbco
4arm-peg-dbco
二苯并环辛烯peg羧基 ,dbco-peg-cooh,产品芃硕生物专业供应。

上海芃硕生物科技有限公司
汪先生
18516261775
上海 上海 浦东新区 陈春东路99弄
该用户其它信息

推荐信息

长沙分类信息网-长沙新闻网
关于本站