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Sulfo-Cyanine7 carboxylic acid

分子式:C37H43N2KO8S2

分子量:746.97

CAS 号:2104632-29-1(内盐); 2104632-30-4(钠盐)

外  观:深绿色粉末

产品特性:

磺基花菁7羧酸是非反应性的水溶性近红外染料。

当不需要与其他分子连接时,该试剂可用作近红外范围内的荧光标记。它有很高的亲水性和水溶性,在NIR范围内提高了量子产率,并且具有很高的摩尔消光系数。

该试剂含有游离羧酸功能。也可以提供预活化的活化酯-磺基花青7 NHS酯。

 

一般性质

外观:

深绿色粉末

分子量:

746.97

CAS号:

2104632-29-1(内盐); 2104632-30-4(钠盐)

分子式:

C37H43N2KO8S2

溶解度:

溶于水,DMFDMSO0.10 M = 76 g / L)。几乎不溶于非极性有机物溶剂。

质量控制:

NMR 1HHPLC95%)

储存条件:

储存:在-20°C下黑暗中接收后24个月。运输:常温下最多3周,避免长时间暴露在光线下。

 

光谱性质

激发最大值,nm

750

ε,Lmol−1cm−1

240600

发射最大值,nm

773

CF260

0.04

CF280

0.04


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