sulfo-Cyanine5 hydrazide
| 目录号 | 数量 | 价格 | 提前通知时间 | 购买此产品 |
|---|---|---|---|---|
| 13370 | 1 mg | $125 | 现货 | |
| 23370 | 5 mg | $325 | 现货 | |
| 43370 | 25 mg |
$850
|
现货 | |
| 53370 | 50 mg |
$1490
|
现货 | |
| 63370 | 100 mg |
$1990
|
现货 |
sulfo-Cyanine5 is a sulfated derivative of Cyanine5 dye, well soluble in water because of two negatively charged sulfo groups in its structure. By its spectral characteristics, this far-red fluorescent dye is an analog of Cy™5.
Hydrazides efficiently react with aldehydes and ketones resulting in hydrazones, so this compound can be used for conjugation with carbonyl derivatives of biomolecules.
The reaction runs in aqueous conditions, which is important when working with antibodies and proteins. Cys-diol groups in sugars in glycosylated proteins and antibodies can be oxidized into dialdehydes, and cysteine in proteins can be converted with enzymes to formyl glycerol (i. e. reactive groups for conjugation with sulfo-Cyanine5 hydrazide). Carboxyl groups of aspartic and glutamic acids in proteins and peptides can be also conjugated with sulfo-Cyanine5 hydrazide in the presence of activating agents: carbodiimide (EDAC) or methyl morpholine (DMTMM) derivatives.
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sulfo-Cyanine5.5 maleimide
sulfo-Cyanine5.5 is a water-soluble far-red emitting dye. This is a thiol-reactive maleimide derivative of sulfo-Cyanine5.5. It is recommended for the labeling of sensitive proteins.Cyanine5 hydrazide
Cy5 hydrazide is a reactive dye for aldehydes and ketones. It can be used for the labeling of glycoproteins after periodate oxidation of sugar moieties.sulfo-Cyanine3 hydrazide
Cyanine3 hydrazide with sulfo groups, well soluble in water and readily reacting with carbonyl compounds.General properties
| Appearance: | dark blue solid |
| Molecular weight: | 656.83 |
| CAS number: | 2055138-61-7 |
| Molecular formula: | C32H40N4O7S2 |
| Solubility: | very good in water, good in DMF and DMSO |
| 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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