磺化Cy3.5(sulfo Cyanine 3.5; sulfo Cy3.5)是一种发红色荧光的花青素类荧光染料。磺化Cy3.5是磺化修饰过的Cy3.5，水溶性好，它在显影时可以用561nm或者594nm的激光束激发然后用 Texas Red? 或相似的滤片观察，所以也是一种非常常用的标记染料。磺化Cy3.5可以用来标记蛋白，抗体，多肽,核酸分子，纳米粒等。

磺化Cy3.5水溶性非常好，可在水相标记反应体系中直接使用，不需要有机溶剂助溶，特别适合标记对有机溶剂敏感的生物分子。另外由于强水溶性加染料分子本身带电荷，磺化Cy3.5标记到生物分子表面后不会引发疏水性聚集，提高荧光标记产物的稳定性。

炔烃(alkyne)是常用生物标记基团。通过铜催化点击化学反应(Copper-catalyzed azide–alkyne cycloaddition, CuAAC)，炔烃可以和叠氮(azide)生成稳定的生物链接(bioconjugate)。点击化学反应效率很高，可在水相中(也可有机相)快速完成，即便在低浓度(μM)下。点击化学反应技术发展很成熟，各种相关试剂商业易得，各种生物标记应用广泛。

Cy3.5标记后的产物Ex/Em是591nm/604nm。和它具有相似荧光特性的染料包括Texas Red?，Alexa Fluor 594, BODIPY? TR, DyLight 594等。

英文名称：Sulfo-Cyanine3.5 alkyne

     Sulfo-CY3.5 alkyne

中文名称：硫代-青色素3.5炔烃

     水溶性Cyanine3.5炔基

分子式：C41H40N3K3O13S4

分子量：1028.32
溶解性：易水溶，亦可溶于DMF, DMSO

质量控制：纯度>95%

储存条件：在-20°C中24个月。

运 输：室温下长达3周。避免长时间接触光线。

结构式：

我公司其它染料：

ROX NHS ester, pure 6- isomer

BDP FL NHS ester

BDP TMR NHS ester

Cyanine3 NHS ester

Cyanine3.5 NHS ester

Cyanine5 NHS ester

Cyanine5.5 NHS ester

Cyanine7 NHS ester

Cyanine7.5 NHS ester

Pyrenebutyric acid NHS ester

Sulfo-Cyanine3 NHS ester

Sulfo-Cyanine5 NHS ester

Sulfo-Cyanine7 NHS ester

Dye azides

BDP FL azide

Coumarin 343 azide

Cyanine3 azide

Cyanine3.5 azide

Cyanine5 azide

Cyanine5.5 azide

Cyanine7 azide

Cyanine7.5 azide

FAM azide, 5-isomer

FAM azide, 6-isomer

PEP azide

Perylene azide

Pyrene azide 1

Pyrene azide 2

Pyrene azide 3

R110 azide, 5- isomer

R110 azide, 6- isomer

ROX azide, 5- isomer

Sulfo-Cyanine3 azide

Sulfo-Cyanine5 azide

Sulfo-Cyanine7 azide

TAMRA azide, 5-isomer

Dye alkynes

1-Ethynyl pyrene

3-Ethynyl perylene

BDP FL alkyne

Cyanine3 alkyne

Cyanine5 alkyne

Cyanine5.5 alkyne

Cyanine7 alkyne

Cyanine7.5 alkyne

FAM alkyne, 5-isomer

FAM alkyne, 6-isomer

Sulfo-Cyanine3 alkyne

Sulfo-Cyanine5 alkyne

TAMRA alkyne, 5-isomer

Dye maleimides

BDP FL maleimide

Cyanine3 maleimide

Cyanine5 maleimide

Cyanine5.5 maleimide

Cyanine7 maleimide

Cyanine7.5 maleimide

Sulfo-Cyanine3 maleimide

Sulfo-Cyanine5 maleimide

Dye hydrazides

Cyanine3 hydrazide

Cyanine5 Boc-hydrazide

Cyanine5 hydrazide

Cyanine5.5 hydrazide

Cyanine7 hydrazide

Cyanine7.5 hydrazide

Carboxylic acids

Cyanine3 carboxylic acid

Cyanine3.5 carboxylic acid

Cyanine5 carboxylic acid

Cyanine5.5 carboxylic acid

Cyanine7 carboxylic acid

Cyanine7.5 carboxylic acid

Pyrenebutyric acid

Sulfo-Cyanine3 carboxylic acid

Sulfo-Cyanine5 carboxylic acid

Sulfo-Cyanine7 carboxylic acid

Amino dyes

Cyanine3 amine

Cyanine5 amine

Cyanine5.5 amine

Cyanine7 amine

Cyanine7.5 amine

Sulfo-Cyanine7 amine