The present application discloses a lanthanide chelate of formula (I) or a salt thereof, wherein at least one of Ch1 and Ch2 is an amide that forms a coordinate bond with the lanthanide. The application also discloses a detection agent comprising a biospecific binding reactant conjugated to the compound of formula (I). Disclosed are also methods of labelling a biospecific binding reactant as well as methods of detection an analyte therewith. Further, a solid support material conjugated with the compound of formula (I) is disclosed.
本申请公开了一种配方(I)的
镧系螯合物或其盐,其中Ch1和Ch2中至少有一个是与
镧系元素形成配位键的
酰胺。该申请还公开了一种检测试剂,其包括与配方(I)化合物结合的
生物特异性结合试剂。还公开了一种标记
生物特异性结合试剂的方法,以及用其检测分析物的方法。此外,还公开了与配方(I)化合物结合的固体支持材料。