您的位置:首页>>生化试剂>>生物染料/指示剂/色素>>Cy5.5 酰肼 Cyanine5.5 hydrazide
Cat. Number
Cy5.5 酰肼 Cyanine5.5 hydrazide
Chemical Name
Cy5.5 酰肼 Cyanine5.5 hydrazide
Mol. Formula
C40H46Cl2N4O
Mol. Weight
669.73
Qty 1
5mg
Qty 2
25mg
Appearance
dark blue powder
Solubility
moderate solubility in water, good in polar organic solvents (DMF, DMSO, alcohols)
Storage condition
-20°C
References

Cyanine5.5 hydrazide is a carbonyl-reactive near infrared dye. Hydrazides quickly react with carbonyl compounds, such as aldehydes and ketones, and form stable hydrazones. This reaction is useful for the preparation of labeled conjugates.

Carbonyl groups in biomolecules can form spontaneously after oxidative stress or deamination of proteins. Alternatively, aldehyde groups can be specifically generated by periodate oxidation of sugar residues of glycoproteins, for example antibodies. Antibodies can be oxidized by sodium periodate and labeled with Cyanine5.5 hydrazide to form Cyanine5.5 labeled antibodies. Since sugar residues in antibodies are located far from variable, epitope-binding site, this method is particularly good for the labeling of antibodies.

Cyanine5.5 is a near infrared fluorophore, an analog of Cy5.5®. It is particularly suitable for the applications which require low fluorescence background. The absorption and emission wavelength of the dye exhibit significant tissue penetration, so Cyanine5.5 is suitable for in vivo NIR imaging applications.

Spectral properties

Excitation maximum, nm: 684
ε, L⋅mol−1⋅cm−1: 209000
Emission maximum, nm: 710
Fluorescence quantum yield: 0.2
CF260: 0.07
CF280: 0.03
在线咨询 联系方式 二维码

服务热线

021-60498804

扫一扫,关注我们