一:产品描述
1、名称
QSY 21NHS
淬灭剂QSY21 NHS
淬灭剂QSY21 NHS ester
2、CAS编号:304014-13-9
3、分子式:C45H39ClN4O7S
4、分子量:815.34
5、外观: 紫色固体 (具体由其分子量大小决定外观)
6、熔点:>200℃
7、波长(λmax):661 nm
8、储存: -20℃可长期保存,注意避光并置于干燥处
9、产地:中国 陕西 西安
二:产品结构式
三:产品简介
QSY-21在大~661nm处具有广泛且强烈的吸收,没有可检测到的无荧光,使其可用作荧光共振能量转移(FRET)应用中的受体。它是一种常见的长波长猝灭剂,可与Cy5,Alexa Fluor 647,iFluor 647或其他光谱相似的荧光染料配对。
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