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Cyanine5.5 hydrazide

分子式:C40H46Cl2N4O

分子量:669.73

CAS 号:2280971-80-2(不含阴离子)

外  观:深蓝色粉末

产品特性:

Cyanine5.5酰肼是一种可与羰基反应的近红外染料。酰肼与羰基化合物(例如醛和酮)快速反应,并形成稳定的。该反应可用于制备标记的缀合物。

生物分子中的羰基可以在氧化应激或蛋白质脱氨后自发形成。或者,醛基可以通过糖蛋白例如抗体的糖残基的高碘酸盐的氧化而特异性地产生。抗体可以被高碘酸钠氧化并用Cyanine5.5酰肼标记以形成Cyanine5.5标记的抗体。由于抗体中的糖残基位置远离可变的表位结合位点,因此该方法对抗体的标记特别有用。

Cyanine5.5是近红外荧光团,是Cy5.5®的类似物。特别适用于需要低荧光背景。染料的吸收和发射波长显示出显着的组织渗透性,因此Cyanine5.5适用于体内NIR成像应用。


一般结构

外观:

深蓝色粉末

分子量:

669.73

CAS号:

2280971-80-2(不含阴离子)

分子式:

C40H46Cl2N4O

溶解度:

几乎不溶于水(<2 uM),在极性有机溶剂(DMFDMSO,醇)中良好

质量控制:

NMR 1HHPLC-MS95%)

储存条件:

储存:在-20°C下黑暗中接收后24个月。运输:在室温下长达3周,避免长时间暴露在光线下,干燥

 

光谱性质 

最大激发,nm

684

ε,Lmol−1cm−1

198000

发射最大值,nm

710

荧光量子产率:

0.2

CF260

0.07

CF280

0.03



 


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BDP 564/570 carboxylic acid

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BDP 581/591 carboxylic acid

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BDP 630/650 carboxylic acid

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