sulfo-Cyanine5 tyramide
| 目录号 | 数量 | 价格 | 提前通知时间 | 购买此产品 |
|---|---|---|---|---|
| 3796-1mg | 1 mg | $110 | 现货 |
Thyramide signal amplification (TSA) is the most versatile and effective way to enhance the intensity of the fluorescent signal, used in immunohistochemistry (IHC), immunocytochemistry (ICC), and fluorescence in situ hybridization (FISH). The TSA method is based on the ability of horseradish peroxidase (HRP) in the presence of low concentrations of hydrogen peroxide to convert a labeled tyramine-containing substrate into an oxidized, highly reactive free radical that covalently binds to the tyrosine residues of protein molecules located next to it.
Compared to conventional procedures, the TSA method increases the sensitivity of immunofluorescent detection of target molecules by more than 100 times, making it particularly suitable for detecting low-concentration targets. In applications where increased detection sensitivity is not required, TSA can significantly reduce antibody or probe concentrations without loss of signal intensity, thereby reducing background staining due to cross-reactivity or non-specific binding of antibodies.
Since the binding of the tyramide label is covalent, tyramides of different dyes can be used in several sequential rounds of TSA staining to detect multiple targets in the same sample.
This tyramide is a conjugate of the water-soluble far-red fluorescent dye sulfo-Cyanine5. sulfo-Cyanine5 tyramide (also known as Cy5® and Cyanine5 tyramide from other manufacturers) is a component of many tyramide signal amplification (TSA) kits. It can be used with any antibody or other molecules (streptavidin, etc.) conjugated to HRP to stain cells and tissues by immunofluorescence methods.
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AF 488 叠氮化物 (AF 488 azide)
AF 488 叠氮化物是一种发射在绿色光谱范围内的荧光团。它与炔烃在铜催化的条件下发生环加成反应。Linear Polyacrylamide for Nucleic Acid Precipitation
Nucleic acid coprecipitant. Suitable for PCR and RT-PCR reactions.Cyanine5 NHS 酯 (Cyanine5 NHS ester)
胺反应性 Cyanine5 活化酯，用于标记蛋白质、肽和其他分子。General properties
| Appearance: | dark blue solid |
| Molecular weight: | 800.05 |
| Molecular formula: | C40H46KN3O8S2 |
| Solubility: | soluble in water, DMSO, DMF |
| Quality control: | NMR 1H and HPLC-MS (95+%) |
| Storage conditions: | 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate. Avoid prolonged exposure to light. |
| 安全数据表（MSDS）: | 下载 |
| 产品规格 |
Spectral properties
| Excitation/absorption maximum, nm: | 646 |
| ε, L⋅mol−1⋅cm−1: | 271000 |
| Emission maximum, nm: | 662 |
| Fluorescence quantum yield: | 0.28 |
| CF260: | 0.04 |
| CF280: | 0.04 |
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