Cyanine7 hydrazide,酰肼紅色熒光染料
目前Cyanine系列染料以兩種異構(gòu)體的形式存在，一種是非磺化花青素（non-sulfonated cyanines），一種是磺化花青素（sulfonatedcyanine）。兩者的光譜性質(zhì)幾乎*，因此大部分應(yīng)用可相互替換。

Cyanine7 hydrazide,酰肼紅色熒光染料

產(chǎn)品介紹

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.

結(jié)構(gòu)式：

 

Cyanine7 hydrazide,酰肼紅色熒光染料

西安凱新生物科技有限公司

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