Cyanine7 hydrazide,酰肼红色荧光染料
产品介绍
Cyanine7 hydrazide
Hydrazide derivative of Cyanine7, a NIR fluorescent dye, an analog of Cy7®.
This variety of heptamethine fluorophore contains a six-membered ring rigidizing the polymethine chain which allows to increase uantum yield by 20% pared to parent structure.
Hydrazide reacts uickly and smoothly with aldehydes and ketones yielding stable hydrazone products. This reaction is also good for the labeling of glycoproteins after periodate oxidation.
General properties
Appearance: | green powder |
Mass spec M+ increment: | 544.8 |
Molecular weight: | 635.70 |
Molecular formula: | C37H48Cl2N4O |
Solubility: | moderate solubility in water, good in polar organic solvents (DMF, DMSO, alcohols) |
uality con*rol: | 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: | 750 |
ε, L⋅mol−1⋅cm−1: | 199000 |
Emission maximum, nm: | 773 |
Fluorescence uantum yield: | 0.3 |
CF260: | 0.022 |
CF280: | 0. |
结构式:
Cyanine7 hydrazide,酰肼红色荧光染料
西安凯新生物科技有限公司
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