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Cyanine5.5 NHS ester (superior to cy5.5 NHS ester)
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AP35L1041mg1480
- Product Description
- Product FAQ
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- Product Literature
- MSDS
- Operation video
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Product Description
Cy5.5 NHS ester is a near-infrared dye that, in addition to labeling the amino groups of peptides, proteins, and oligonucleotides, is also widely used for in vivo imaging in small animals. Because it avoids the visible-light region where many substances exhibit absorption, the near-infrared light it absorbs penetrates biological tissues more deeply, while the emitted fluorescence is less affected by background signals from the tissue itself, enabling signal generation in deep tissues. In particular, within the 700–900 nm range, both water and hemoglobin exhibit minimal absorption, allowing near-infrared light to penetrate up to 15 cm into tissue. Moreover, these dyes offer a level of biosafety that cannot be achieved with ultraviolet dyes or isotopic labels. Cyanine 5.5 (Cy5.5) is one of the most commonly used near-infrared fluorescent dyes.
Cyanine 5.5 NHS ester requires a cosolvent, but due to its lower hydrophobicity compared to Cyanine 7, it is more widely used. Li Ji Bio offers cyanine 5.5 NHS ester in its potassium salt form, identical to that supplied by GE. NHS esters (succinimidyl esters) are commonly employed for labeling the amino groups of biomolecules.
Cyanine 5.5 NHS ester (succinimidyl ester) exhibits broad spectral properties similar to those of Alexa Fluor 680 NHS ester and DyLight 680 NHS ester, making it a suitable alternative.
Technical Documentation
1.Ex(nm): 678
2. Em(nm): 701
3. Molecular weight: 1128.40
4. Solvent: DMSO
Product ingredients
Product Name
Specifications
Cyanine5.5 NHS ester (superior to cy5.5 NHS ester)
1 mg
Transportation and Save
Blue ice transport. Store at -20°C away from light; shelf life: 12 months.
This product is intended solely for scientific research and must not be used for clinical diagnosis, treatment, or any other purposes.
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