西安凱新生物科技有限公司可以提供一種Cy系列活性熒光染料的升級版CY-B染料，該熒光染料的量子產(chǎn)率是CY系列產(chǎn)品的3倍，高達(dá)0.7，細(xì)胞毒性和理化性質(zhì)和CY染料一樣。

供應(yīng)商：西安凱新生物科技有限公司

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英文介紹：

Cy3B fluorescent dye belongs to the Cyaninefamily of synthetic polymethine dyes. It has an absorbance maximum of 559 nmand an emission maximum of 570 nm. Cyanine dyes normally are capable ofcis/trans isomerization around the polymethine, which can lead to loss offluorescence after excitation, and weaker signal. By contrast, Cy3B isconformationally locked, the dye is not subject to photo-isomerization andimproved fluorescent properties1,2. As a result, Cy3B is both extremely brightand extremely stable. Cy3B can be used to substitute in anyoligonucleotide-based application suitable for Cy3, such as TaqMan probes,Scorpion primers, Molecular Beacons, or Fluorescent In-Situ Hybridization. LikeCy3, Cy3B is most commonly paired with the dark quencher BHQ-2, as the two haveexcellent spectral overlap.

CY3B/CY5B/CY7B 可以修飾NHS、NH2、MAL、N3等活性基團(tuán),代替CY3/CY5/CY7活性基團(tuán)產(chǎn)品使用。CYB染料是CY系列染料的升級版，熒光量子產(chǎn)率更高結(jié)構(gòu)更穩(wěn)定。

CY和CYB染料對比：

1：CY染料量子產(chǎn)率0.2，CYB染料量子產(chǎn)率0.7

2：CY和CYB都可以修飾NH2、NHS、MAL、N3、COOH等活性基團(tuán)

3：CY和CYB純度大于95% 并能提供檢測圖譜

4：CYB價(jià)格只比CY貴50%，但是比國外便宜80%

產(chǎn)品：CY3B-NHS ester

狀態(tài)：粉末

Excitation (nm):550

Emission (nm): 570

包裝：10mg/25mg/50mg

Quantum Yield :  0.7 

純度：95%+

其他產(chǎn)品：

CY3B-MAL

CY3B-Amine

CY3B-COOH

CY3B-N3

CY3B-ALK

CY5B-NHS ester

CY5B-Amine

CY7B-COOH

CY7B-N3