sulfo-Cyanine5 hydrazide
| 貨號 | 數量 | 價格 | 交貨時間 | 購買此產品 |
|---|---|---|---|---|
| 13370 | 1 mg | $125 | 現貨 | |
| 23370 | 5 mg | $325 | 現貨 | |
| 43370 | 25 mg |
$850
|
現貨 | |
| 53370 | 50 mg |
$1490
|
現貨 | |
| 63370 | 100 mg |
$1990
|
現貨 |
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.磺基-Cyanine5馬來酰亞胺
適用於 Cy5® 通道的硫基反應性水溶性花青染料。炔醯肼 (Alkyne hydrazide)
含有炔基和醯肼官能團的雙功能試劑。它與醛和酮發生反應。然後炔基可以通過 CuAAC 反應與各種疊氮化物偶聯。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. |
| MSDS: | 下載 |
| 產品規格 |
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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