水溶Cyanine 5琥珀酰亚胺酯（succinimidyl ester（SE）），类似于Cy5® NHS ester，不需要有机溶剂即在水相中即可对各种带氨基分子进行标记。因此该产品尤其适用于对那些在有机溶剂中易变性的蛋白和低溶解度蛋白的标记。
Sulfo-Cyanine 5是Cy5®的衍生物，与很多仪器如读板机（plate readers），显微镜和成像设备等相兼容。是受欢迎的荧光染料之一。
该染料是高度亲水的、水溶的。非磺化的衍生物：Cyanine 5 NHS ester。
可以在所有的应用中替代Cy5®，Alexa Fluor 647和DyLight 649。
推荐手册：
氨基分子的NHS酯标记
Cy® is a trademark of GE Healthcare.
General properties
Appearance:
dark blue powder
Molecular weight:
761.84
Molecular formula:
C36H40N3NaO10S2
Solubility:
very good in water, good in DMF and DMSO
Quality control:
NMR 1H (95%) and 13C, TLC, functional testing
Storage conditions:
Storage: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.
MSDS:
Download
Spectral properties
Excitation maximum, nm:
646
Extinction coefficient at excitation maximum, Lmol-1cm-1:
271000
Emission maximum, nm:
662
Fluorescence quantum yield:
0.2
CF260:
0.13
CF280:
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