Cyanine7 hydrazide|花青素CY7酰肼（水溶）
时间：2018-02-28 阅读：245
Cyanine7 hydrazide|花青素CY7酰肼（水溶）
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 quantum yield by 20% pared to parent structure.
Hydrazide reacts quickly and smoothly with aldehydes and ketones yielding stable hydrazone products. This reaction is also good for the labeling of glycoproteins after periodate oxidation.
供应商：西安凯新生物科技有限公司
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) |
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 quantum yield: | 0.3 |
CF260: | 0.022 |
CF280: | 0. |