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Cyanine5.5 hydrazide,Cy5.5-hydrazide
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 
General properties
Appearance:
dark blue powder
Molecular weight:
669.73
Molecular formula:
C40H46Cl2N4O
Solubility:
moderate solubility in water, good in polar organic solvents (DMF, DMSO, alcohols)
Quality control:
NMR 1H, HPLC-MS (95%)
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.
   
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
Cyanine5.5 hydrazide,Cy5.5-hydrazide
酰肼 Dye hydrazides
Pyrene hydrazide
BDP FL hydrazide
Cyanine3 hydrazide
Cyanine5 Boc-hydrazide
Cyanine5 hydrazide
Cyanine5.5 hydrazide
Cyanine7 hydrazide
Cyanine7.5 hydrazide
其它相关产品：
TAMRA Dye荧光染料产品包括：
TAMRA NHS Ester
TAMRA Acid
TAMRA Azide
TAMRA DBCO
TAMRA Alkyne
TAMRA Methyltetrazine
Cy3 Dye荧光染料产品包括：
Cy3 NHS Ester
Cy3 Acid
Cy3 Tetrazine
Cy3 Maleimide
Cy3 Azide
Cy3 Alkyne
Cy3 DBCO
Cy5 Dye荧光染料产品包括：
Cy5 Acid
Cy5 NHS Ester
Cy5 Maleimide
Cy5 Tetrazine
Cy5 Alkyne
Cy5 Azide
Cy5 DBCO
Cy5-TCO
Cy5 Biotin
Cy5.5 Dye荧光染料产品包括：
Cy5.5 NHS Ester
Cy5.5 Maleimide
Cy5.5 Azide
Cy5.5 Alkyne
Cy5.5 DBCO
Cy7 Dye荧光染料产品包括：
Cy7 NHS Ester
Cy7 Maleimide
Cy7 Methyltetrazine
Cy7 Alkyne
Cy7 Azide
Cy7 DBCO
其他交联剂：
ThioLinker NHS Ester
ThioLinker Amine
ThioLinker Acid
ThioLinker-DBCO
ThioLinker-Azide
Bis-sulfone NHS Ester
ThioLinker-Tetrazine
Bis-sulfone-PEG4-NHS Ester
Bis-sulfone-PEG12-NHS Ester
Bis-sulfone Acid
Bis-sulfone Amine
Bis-sulfone-PEG4-DBCO
Bis-sulfone-PEG3-Azide
Bis-sulfone-PEG4-Tetrazine